introduce fix for issue 1105 (https://github.com/SheetJS/js-xlsx/issues/1105 )

2018-05-15 10:34:27 +01:00
753 changed files with 90322 additions and 2542795 deletions
--- a/.eslintignore
+++ b/.eslintignore
@ -1 +0,0 @@
-xlsx.js
--- a/.eslintmjs
+++ b/.eslintmjs
@ -1,12 +0,0 @@
-{
-  "parserOptions": {
-    "sourceType": "module",
-    "ecmaVersion": 2020
-  },
-  "plugins": [
-    "tree-shaking"
-  ],
-  "rules": {
-    "tree-shaking/no-side-effects-in-initialization": 2
-  }
-}
--- a/.eslintrc
+++ b/.eslintrc
@ -13,7 +13,6 @@
 		"no-bitwise": 0,
 		"no-console": 0,
 		"no-control-regex": 0,
-		"no-unused-vars": 1,
 		"no-empty": 0,
 		"no-trailing-spaces": 2,
 		"no-use-before-define": [ 1, {
--- a/.flowconfig
+++ b/.flowconfig
@ -8,15 +8,13 @@
 .*/misc/.*
 .*/perf/.*
 .*/_book/.*
-.*/packages/.*

 .*/demo/browser.js
 .*/shim.js

 .*/xlsx.js
-.*/xlsx.mini.js
-.*/xlsx.mini.flow.js
 .*/xlsxworker.js
+.*/jszip.js
 .*/tests/.*
 .*/demos/.*

--- a/.fossaignore
+++ b/.fossaignore
@ -0,0 +1,16 @@
+bits/
+demos/
+dist/
+docbits/
+misc/
+node_modules/
+types/
+tests/
+test_files
+*.md
+
+*.json
+*.log
+*.sh
+.DS_Store
+.Trashes
--- a/.gitattributes
+++ b/.gitattributes
@ -1,17 +1,11 @@
-*.html      linguist-documentation
-
 *.md        text eol=lf
 bits/*.js   text eol=lf
 test.js     text eol=lf
 xlsx*.js    text eol=lf
 *.flow.js   text eol=lf

-docbits/*         linguist-documentation
-dist/*            linguist-generated=true binary
-*.mjs             linguist-generated=true binary
-xlsx.js           linguist-generated=true binary
-xlsxworker.js     linguist-generated=true binary
-tests/core.js     linguist-generated=true binary
-tests/fixtures.js linguist-generated=true binary
-
-test.mjs    lingust-generated=false binary=false text eol=lf
+docbits/*      linguist-documentation
+dist/*         linguist-generated=true
+xlsx.js        linguist-generated=true
+xlsxworker.js  linguist-generated=true
+tests/core.js  linguist-generated=true
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@ -1,3 +0,0 @@
-github: SheetJSDev
-custom: https://sheetjs.com
-open_collective: s5s
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -1,6 +0,0 @@
-blank_issues_enabled: false
-contact_links:
-    - name: Issues and Questions
-      url: https://git.sheetjs.com/sheetjs/sheetjs/issues
-      about: Please report issues to the official code repository.
-
--- a/.github/workflows/bun.yml
+++ b/.github/workflows/bun.yml
@ -1,20 +0,0 @@
-name: 'Tests: Bun'
-
-on: [pull_request, push]
-
-jobs:
-  # misc test
-  misc:
-    name: 'misc (with codepage)'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: antongolub/action-setup-bun@v1
-      - uses: ljharb/actions/node/install@main
-        with:
-          node-version: '16.'
-      - run: sudo curl -Lo /usr/bin/rooster https://github.com/SheetJS/rooster/releases/download/v0.2.0/rooster-v0.2.0-linux-amd64
-      - run: sudo chmod a+x /usr/bin/rooster
-      - run: make init
-      - run: 'cd test_files; make all; cd -'
-      - run: 'env FMTS=misc bun hotcross.mjs'
--- a/.github/workflows/deno.yml
+++ b/.github/workflows/deno.yml
@ -1,39 +0,0 @@
-name: 'Tests: deno 1.x'
-
-on: [pull_request, push]
-
-jobs:
-  # full test
-  full:
-    name: 'full (with codepage)'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: denoland/setup-deno@main
-        with:
-          deno-version: v1.x
-      - uses: ljharb/actions/node/install@main
-        with:
-          node-version: '16.'
-      - run: sudo curl -Lo /usr/bin/rooster https://github.com/SheetJS/rooster/releases/download/v0.2.0/rooster-v0.2.0-linux-amd64
-      - run: sudo chmod a+x /usr/bin/rooster
-      - run: make init
-      - run: 'cd test_files; make all; cd -'
-      - run: deno test --allow-env --allow-read --allow-write --config misc/test.deno.jsonc test.ts
-  # full test (no codepage)
-  fullnocp:
-    name: 'full (no codepage)'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: denoland/setup-deno@main
-        with:
-          deno-version: v1.x
-      - uses: ljharb/actions/node/install@main
-        with:
-          node-version: '16.'
-      - run: sudo curl -Lo /usr/bin/rooster https://github.com/SheetJS/rooster/releases/download/v0.2.0/rooster-v0.2.0-linux-amd64
-      - run: sudo chmod a+x /usr/bin/rooster
-      - run: make init
-      - run: 'cd test_files; make all; cd -'
-      - run: deno test --allow-env --allow-read --allow-write --config misc/test.deno.jsonc testnocp.ts
--- a/.github/workflows/node-4+.yml
+++ b/.github/workflows/node-4+.yml
@ -1,92 +0,0 @@
-name: 'Tests: node.js'
-
-on: [pull_request, push]
-
-jobs:
-  matrix:
-    runs-on: ubuntu-latest
-    outputs:
-      latest: ${{ steps.set-matrix.outputs.requireds }}
-    steps:
-      - uses: ljharb/actions/node/matrix@main
-        id: set-matrix
-        with:
-          versionsAsRoot: true
-          type: 'majors'
-          preset: '>=4'
-
-  latest:
-    needs: [matrix]
-    name: 'latest majors'
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        node-version: ${{ fromJson(needs.matrix.outputs.latest) }}
-        include:
-          - node-version: '14.'
-            env:
-              TZ: America/New_York
-          - node-version: '13.'
-            env:
-              TZ: Europe/London
-          - node-version: '12.'
-            env:
-              TZ: Asia/Seoul
-          - node-version: '11.'
-            env:
-              TZ: America/Los_Angeles
-              FMTS: misc
-          - node-version: '10.'
-            env:
-              TZ: Europe/Berlin
-              FMTS: misc
-          - node-version: '9.'
-            env:
-              TZ: Asia/Kolkata
-              FMTS: misc
-          - node-version: '8.'
-            env:
-              TZ: Asia/Shanghai
-              FMTS: misc
-          - node-version: '7.'
-            env:
-              TZ: America/Cancun
-              FMTS: misc
-          - node-version: '6.'
-            env:
-              TZ: Asia/Seoul
-              FMTS: misc
-          - node-version: '5.'
-            env:
-              TZ: America/Anchorage
-              FMTS: misc
-          - node-version: '4.'
-            env:
-              TZ: America/Barbados
-              FMTS: misc
-          - node-version: '4.4.7' # see GH issue #1150
-            env:
-              TZ: Asia/Tokyo
-              FMTS: misc
-
-    steps:
-      - uses: actions/checkout@v2
-      - uses: ljharb/actions/node/install@main
-        name: 'nvm install ${{ matrix.node-version }} && npm install'
-        with:
-          node-version: ${{ matrix.node-version }}
-      - run: sudo curl -Lo /usr/bin/rooster https://github.com/SheetJS/rooster/releases/download/v0.2.0/rooster-v0.2.0-linux-amd64
-      - run: sudo chmod a+x /usr/bin/rooster
-      - run: make init
-      - run: 'cd test_files; make all; cd -'
-      - run: npm run tests-only
-      - run: 'cd packages/ssf; npm install; npm run tests-only; cd -'
-
-  node:
-    name: 'node 4+'
-    needs: [latest]
-    runs-on: ubuntu-latest
-    steps:
-      - run: 'echo tests completed'
--- a/.github/workflows/node-iojs.yml
+++ b/.github/workflows/node-iojs.yml
@ -1,45 +0,0 @@
-name: 'Tests: node.js (io.js)'
-
-on: [pull_request, push]
-
-jobs:
-  matrix:
-    runs-on: ubuntu-latest
-    outputs:
-      latest: ${{ steps.set-matrix.outputs.requireds }}
-    steps:
-      - uses: ljharb/actions/node/matrix@main
-        id: set-matrix
-        with:
-          type: 'majors'
-          preset: 'iojs'
-
-  latest:
-    needs: [matrix]
-    name: 'latest majors'
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix: ${{ fromJson(needs.matrix.outputs.latest) }}
-
-    steps:
-      - uses: actions/checkout@v2
-      - uses: ljharb/actions/node/install@main
-        name: 'nvm install ${{ matrix.node-version }} && npm install'
-        with:
-          node-version: ${{ matrix.node-version }}
-          skip-ls-check: true
-      - run: sudo curl -Lo /usr/bin/rooster https://github.com/SheetJS/rooster/releases/download/v0.2.0/rooster-v0.2.0-linux-amd64
-      - run: sudo chmod a+x /usr/bin/rooster
-      - run: make init
-      - run: 'cd test_files; make all; cd -'
-      - run: npm run tests-only
-      #- run: 'cd packages/ssf; npm run tests-only; cd -'
-
-  node:
-    name: 'io.js'
-    needs: [latest]
-    runs-on: ubuntu-latest
-    steps:
-      - run: 'echo tests completed'
--- a/.github/workflows/node-pretest.yml
+++ b/.github/workflows/node-pretest.yml
@ -1,32 +0,0 @@
-name: 'Tests: pretest/posttest'
-
-on: [pull_request, push]
-
-jobs:
-  pretest:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-      - uses: ljharb/actions/node/install@main
-        name: 'nvm install lts/* && npm install'
-        with:
-          node-version: 'lts/*'
-      - run: sudo curl -Lo /usr/bin/rooster https://github.com/SheetJS/rooster/releases/download/v0.2.0/rooster-v0.2.0-linux-amd64
-      - run: sudo chmod a+x /usr/bin/rooster
-      - run: make init
-      - run: 'cd test_files; make all; cd -'
-      - run: npm run pretest
-
-  # posttest:
-  #   runs-on: ubuntu-latest
-
-  #   steps:
-  #     - uses: actions/checkout@v2
-  #     - uses: ljharb/actions/node/install@main
-  #       name: 'nvm install lts/* && npm install'
-  #       with:
-  #         node-version: 'lts/*'
-  #     - run: make init
-  #     - run: 'cd test_files; make all; cd -'
-  #     - run: npm run posttest
--- a/.github/workflows/node-zero.yml
+++ b/.github/workflows/node-zero.yml
@ -1,88 +0,0 @@
-name: 'Tests: node.js (0.x)'
-
-on: [pull_request, push]
-
-jobs:
-  matrix:
-    runs-on: ubuntu-latest
-    outputs:
-      stable: ${{ steps.set-matrix.outputs.requireds }}
-#      unstable: ${{ steps.set-matrix.outputs.optionals }}
-    steps:
-      - uses: ljharb/actions/node/matrix@main
-        id: set-matrix
-        with:
-          versionsAsRoot: true
-          preset: '0.x'
-
-  stable:
-    needs: [matrix]
-    name: 'stable minors'
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        node-version: ${{ fromJson(needs.matrix.outputs.stable) }}
-        include:
-          - node-version: '0.12.'
-            env:
-              TZ: America/Cayman
-              FMTS: misc
-          - node-version: '0.10.'
-            env:
-              TZ: Pacific/Honolulu
-              FMTS: misc
-          - node-version: '0.8.'
-            env:
-              TZ: America/Mexico_City
-              FMTS: misc
-
-    steps:
-      - uses: actions/checkout@v2
-      - uses: ljharb/actions/node/install@main
-        name: 'nvm install ${{ matrix.node-version }} && npm install'
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache-node-modules-key: node_modules-${{ github.workflow }}-${{ github.action }}-${{ github.run_id }}
-          skip-ls-check: true
-      - run: sudo curl -Lo /usr/bin/rooster https://github.com/SheetJS/rooster/releases/download/v0.2.0/rooster-v0.2.0-linux-amd64
-      - run: sudo chmod a+x /usr/bin/rooster
-      - run: make init
-      - run: 'cd test_files; make all; cd -'
-      - run: npm run tests-only
-      #- run: 'cd packages/ssf; npm run tests-only; cd -'
-
-#  unstable:
-#    needs: [matrix, stable]
-#    name: 'unstable minors'
-#    continue-on-error: true
-#    if: ${{ !github.head_ref || !startsWith(github.head_ref, 'renovate') }}
-#    runs-on: ubuntu-latest
-
-#    strategy:
-#      fail-fast: false
-#      matrix:
-#        node-version: ${{ fromJson(needs.matrix.outputs.unstable) }}
-#
-#    steps:
-#      - uses: actions/checkout@v2
-#      - uses: ljharb/actions/node/install@main
-#        name: 'nvm install ${{ matrix.node-version }} && npm install'
-#        with:
-#          node-version: ${{ matrix.node-version }}
-#          cache-node-modules-key: node_modules-${{ github.workflow }}-${{ github.action }}-${{ github.run_id }}
-#          skip-ls-check: true
-#      - run: sudo curl -Lo /usr/bin/rooster https://github.com/SheetJS/rooster/releases/download/v0.2.0/rooster-v0.2.0-linux-amd64
-#      - run: sudo chmod a+x /usr/bin/rooster
-#      - run: make init
-#      - run: 'cd test_files; make all; cd -'
-#      - run: npm run tests-only
-
-  node:
-    name: 'node 0.x'
-#    needs: [stable, unstable]
-    needs: [stable]
-    runs-on: ubuntu-latest
-    steps:
-      - run: 'echo tests completed'
--- a/.github/workflows/rebase.yml
+++ b/.github/workflows/rebase.yml
@ -1,15 +0,0 @@
-name: Automatic Rebase
-
-on: [pull_request_target]
-
-jobs:
-  _:
-    name: "Automatic Rebase"
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - uses: ljharb/rebase@master
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/require-allow-edits.yml
+++ b/.github/workflows/require-allow-edits.yml
@ -1,12 +0,0 @@
-name: Require “Allow Edits”
-
-on: [pull_request_target]
-
-jobs:
-  _:
-    name: "Require “Allow Edits”"
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: ljharb/require-allow-edits@main
--- a/.gitignore
+++ b/.gitignore
@ -4,7 +4,6 @@ package-lock.json
 _book/
 misc/coverage.html
 misc/prof.js
-misc/*.[sS][vV][gG]
 v8.log
 tmp
 *.[tT][xX][tT]
@ -15,21 +14,17 @@ tmp
 *.[pP][dD][fF]
 *.[sS][lL][kK]
 *.socialcalc
-*.[xX][lL][sSwWcCaAtTmMrR]
+*.[xX][lL][sSwWcCaAtTmM]
 *.[xX][lL][sSaAtT][xXmMbB]
 *.[oO][dD][sS]
 *.[fF][oO][dD][sS]
 *.[xX][mM][lL]
-*.[xX][lL][mM][lL]
 *.[uU][oO][sS]
 *.[wW][kKqQbB][S1234567890]
 *.[qQ][pP][wW]
-*.[fF][mM][3tT]
 *.[bB][iI][fF][fF][23458]
 *.[rR][tT][fF]
 *.[eE][tT][hH]
-*.[nN][uU][mM][bB][eE][rR][sS]
-*.[mM][oO][dD]
 *.123
 *.htm
 *.html
--- a/.gitmodules
+++ b/.gitmodules
@ -1,4 +1,3 @@
 [submodule "test_files"]
 	path = test_files
 	url = https://github.com/SheetJS/test_files
-	ignore = dirty
--- a/.npmignore
+++ b/.npmignore
@ -1,14 +1,10 @@
 test_files/
-modules/
-packages/
-.github/
 tests/files/
 demos/
 index.html
 misc/
 node_modules
 *.tgz
-*.jsx
 _book
 book.json
 tmp
@ -20,21 +16,17 @@ tmp
 *.[pP][dD][fF]
 *.[sS][lL][kK]
 *.socialcalc
-*.[xX][lL][sSwWcCaAtTmMrR]
+*.[xX][lL][sSwWcCaAtTmM]
 *.[xX][lL][sSaAtT][xXmMbB]
 *.[oO][dD][sS]
 *.[fF][oO][dD][sS]
 *.[xX][mM][lL]
-*.[xX][lL][mM][lL]
 *.[uU][oO][sS]
 *.[wW][kKqQbB][S1234567890]
 *.[qQ][pP][wW]
-*.[fF][mM][3tT]
 *.[bB][iI][fF][fF][23458]
 *.[rR][tT][fF]
 *.[eE][tT][hH]
-*.[nN][uU][mM][bB][eE][rR][sS]
-*.[mM][oO][dD]
 *.123
 *.htm
 *.html
@ -45,11 +37,8 @@ tmp
 .gitattributes
 .fossaignore
 .spelling
-.eslintignore
 .eslintrc
-.eslintmjs
 .jshintrc
-xlsx.mini.js
 CONTRIBUTING.md
 Makefile
 make.cmd
@ -58,11 +47,6 @@ make.cmd
 xlsworker.js
 shim.js
 test.js
-test.mjs
-test.ts
-test.mts
-testnocp.ts
-testbun.mjs
 .jscs.json
 .gitmodules
 .travis.yml
--- a/.spelling
+++ b/.spelling
@ -1,6 +1,5 @@
 # xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com
 SheetJS
-sheetjs
 js-xlsx
 xls
 xlsb
@ -16,7 +15,6 @@ OData
 OpenDocument
 OpenFormula
 PivotTable
-PivotTables
 Quattro
 SpreadsheetML
 Unhide
@ -36,48 +34,29 @@ tooltips
 Browserify
 CDNjs
 CommonJS
-Deno
 Ethercalc
 ExtendScript
-InDesign
 IndexedDB
 JavaScriptCore
 LocalStorage
-NestJS
 NPM
-Nuxt
-PhantomJS
-Photoshop
+Nuxt.js
 Redis
 RequireJS
 Rollup
 SessionStorage
 SQLite
 SystemJS
-Vite
 VueJS
-WebKit
 WebSQL
-WK_
 iOS
-iWork
 nodejs
-node.js
 npm
 unpkg
 webpack
 weex

 # Other terms
-1.x
-2.x
-3.x
-4.x
-5.x
-6.x
-7.x
-8.x
-9.x
 ActiveX
 APIs
 ArrayBuffer
@ -87,7 +66,6 @@ FileReader
 JS
 NoSQL
 README
-UTF-8
 UTF-16
 VBScript
 XHR
@ -95,43 +73,32 @@ XMLHttpRequest
 bundler
 bundlers
 cleanroom
-codepage
 config
 customizable
 datagrid
-dataset
 deduplication
 destructuring
 embeddable
-encodings
 filesystem
 globals
 javascript
-lifecycle
 metadata
 natively
 pre-built
 pre-generated
 prepend
 prepended
-programmatically
 repo
 runtime
 serverless
 submodule
 transpiled
-utils
-commonjs
-async
-uncheck
-vendoring

 - demos/altjs/README.md
 ChakraCore
 Duktape
 Goja
 Nashorn
-QuickJS

 - demos/angular/README.md
 AngularJS
@ -159,7 +126,6 @@ storages

 - demos/extendscript/README.md
 Photoshop
-InDesign
 minifier

 - demos/function/README.md
@ -180,9 +146,6 @@ Preact
 - demos/server/README.md
 hapi

- - demos/showcase/README.md
-vscode-data-preview
-
 - demos/xhr/README.md
 axios
 superagent
--- a/.travis.yml
+++ b/.travis.yml
@ -1,40 +1,33 @@
 language: node_js
-dist: xenial
 node_js:
-  - "14"
-  - "13"
-  - "12"
-  - "11"
  - "10"
  - "9"
  - "8"
+  - "7"
+  - "6"
 matrix:
  include:
-    - node_js: "14"
-      env: TZ="America/New_York"
-    - node_js: "13"
-      env: TZ="Europe/London"
-    - node_js: "12"
-      env: TZ="Asia/Seoul"
-    - node_js: "11"
-      env: TZ="America/Los_Angeles" FMTS=misc
-    - node_js: "10"
-      env: TZ="Europe/Berlin" FMTS=misc
-    - node_js: "9"
-      env: TZ="Asia/Kolkata" FMTS=misc
+    - node_js: "6"
+      env: TZ="America/New_York" FMTS=misc
    - node_js: "8"
-      env: TZ="Asia/Shanghai" FMTS=misc
+      env: TZ="America/Los_Angeles"
+    - node_js: "8"
+      env: TZ="Europe/London" FMTS=misc
+    - node_js: "6"
+      env: TZ="Europe/Berlin"
+    - node_js: "6"
+      env: TZ="Asia/Kolkata" FMTS=misc
+    - node_js: "9"
+      env: TZ="Asia/Shanghai"
+    - node_js: "8"
+      env: TZ="Asia/Seoul" FMTS=misc
    - node_js: "7"
      env: TZ="America/Cancun" FMTS=misc
-    - node_js: "6"
-      env: TZ="Asia/Seoul" FMTS=misc
+
    - node_js: "5"
      env: TZ="America/Anchorage" FMTS=misc
    - node_js: "4"
      env: TZ="America/Barbados" FMTS=misc
-    # see GH issue #1150
-    - node_js: "4.4.7"
-      env: TZ="Asia/Tokyo" FMTS=misc
    - node_js: "0.12"
      env: TZ="America/Cayman" FMTS=misc
    - node_js: "0.10"
@ -44,10 +37,10 @@ matrix:

 before_install:
  - "npm config set strict-ssl false"
-  - "./misc/node_version.sh"
+  - "npm install -g npm@4.3.0"
  - "npm install -g mocha@2.x voc"
  - "npm install blanket"
-  - "npm install word"
+  - "npm install xlsjs"
  - "npm install coveralls mocha-lcov-reporter"
 # note: jsdom 11.x expects node >= 6 but is missing engines.node
  - "npm install jsdom@11.x"
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -4,218 +4,6 @@ This log is intended to keep track of backwards-incompatible changes, including
 but not limited to API changes and file location changes.  Minor behavioral
 changes may not be included if they are not expected to break existing code.

-## v0.19.1
-
-* Fixed types issue in strict mode (h/t @younes-io)
-* Numbers 12.2 parsing skip ActivityStream.iwa
-
-## v0.19.0
-
-* XLSX export hyperlinks compatible with google sheets (h/t Evan Bovie)
-* NUMBERS export multiple sheets, full worksheet range
-* formalized `dense` mode
-
-## v0.18.12
-
-* `package.json` added types in `exports` structure
-* uncapped NUMBERS single-sheet single-table export
-* DBF export records using supported codepages
-
-## v0.18.11
-
-* Base64 input ignore data URI wrapper
-* Parse ZIP files that use ZIP64 extended information field
-* More precise handling of time-only values
-* Threaded Comment fallback text for older Excel
-
-## v0.18.10
-
-* `exports` field in package.json to satiate ViteJS and newer tooling
-* JSC (Safari / Bun) perf, see <https://bugs.webkit.org/show_bug.cgi?id=243148>
-* workbook `bookType` property to denote the origin format when parsed from file
-* XLSX force export of stub cells with number formats when `sheetStubs` is set
-
-## v0.18.9
-
-* XLSX / ODS write defined names
-* sync defined names to AutoFilter setting on export
-* 1904 date system setting properly roundtripped
-* ODS read/write number formats
-
-## v0.18.8
-
-* Plaintext parsing of dateless meridien time values (`1:23:45 PM`)
-* Legacy format (SYLK / WK# / Multiplan) minutiae 
-
-## v0.18.7
-
-* Normalized handling of `\r` and `\n` newline characters
-
-## v0.18.6
-
-* Removed all npm dependencies
-* Auto-correct bad Google Sheets format `d.m`
-* NUMBERS write merge cells, cells up to column "ALL"
-
-## v0.18.5
-
-* Enabled `sideEffects: false` in package.json
-* Basic NUMBERS write support
-
-## v0.18.4
-
-* CSV output omits trailing record separator
-* Properly terminate NodeJS Streams
-* DBF preserve column types on import and use when applicable on export
-
-## v0.18.3
-
-* Removed references to `require` and `process` in browser builds
-
-## v0.18.2
-
-* Hotfix for unicode processing of XLSX exports
-
-## v0.18.1
-
-* Removed Node ESM build script and folded into standard ESM build
-* Removed undocumented aliases including `make_formulae` and `get_formulae`
-
-## v0.18.0
-
-* Browser scripts only expose `XLSX` variable
-* Module no longer ships with `dist/jszip.js` browser script
-
-## v0.17.4
-
-* CLI script moved to `xlsx-cli` package
-
-## v0.17.3
-
-* `window.XLSX` explicit assignment to satiate LWC
-* CSV Proper formatting of errors
-* HTML emit data-\* attributes
-
-## v0.17.2
-
-* Browser and Node optional ESM support
-* DSV correct handling of bare quotes (h/t @bgamrat)
-
-## v0.17.1
-
-* `XLSB` writer uses short cell form when viable
-
-## 0.17.0:
-
-* mini build includes ODS parse/write support
-* DBF explicitly cap worksheet to 1<<20 rows
-* XLS throw errors on truncated records
-
-## v0.16.2
-
-* Disabled `PRN` parsing by default (better support for CSV without delimeters)
-
-## v0.16.1
-
-* skip empty custom property tags if data is absent (fixes DocSecurity issue)
-* HTML output add raw value, type, number format
-* DOM parse look for `v` / `t` / `z` attributes when determining value
-* double quotes in properties escaped using `_x0022_`
-* changed AMD structure for NetSuite and other RequireJS implementations
- `encode_cell` and `decode_cell` do not rely on `encode_col` / `decode_col`
-
-## v0.16.0
-
-* Date handling changed
-* XLML certain tag tests are now case insensitive
-* Fixed potentially vulnerable regular expressions
-
-## v0.15.6
-
-* CFB prevent infinite loop
-* ODS empty cells marked as stub (type "z")
-* `cellStyles` option implies `sheetStubs`
-
-## v0.15.5
-
-* `sheets` parse option to specify which sheets to parse
-
-## v0.15.4
-
-* AOA utilities properly preserve number formats
-* Number formats captured in stub cells
-
-## v0.15.3
-
-* Properties and Custom Properties properly XML-encoded
-
-## v0.15.2
-
- `sheet_get_cell` utility function
- `sheet_to_json` explicitly support `null` as alias for default behavior
- `encode_col` throw on negative column index
- HTML properly handle whitespace around tags in a run
- HTML use `id` option on write
- Files starting with `0x09` followed by a display character are now TSV files
- XLS parse references col/row indices mod by the correct number for BIFF ver
- XLSX comments moved to avoid overlapping cell
- XLSB outline level
- AutoFilter update `_FilterDatabase` defined name on write
- XLML skip CDATA blocks
-
-## v0.15.1 (2019-08-14)
-
-* XLSX ignore XML artifacts
-* HTML capture and persist merges
-
-## v0.15.0
-
-* `dist/xlsx.mini.min.js` mini build with XLSX read/write and some utilities
-* Removed legacy conversion utility functions
-
-## v0.14.5
-
-* XLS PtgNameX lookup
-* XLS always create stub cells for blank cells with comments
-
-
-## v0.14.4
-
-* Better treatment of `skipHidden` in CSV output
-* Ignore CLSID in XLS
-* SYLK 7-bit character encoding
-* SYLK and DBF codepage support
-
-## v0.14.3
-
-* Proper shifting of addresses in Shared Formulae
-
-## v0.14.2
-
-* Proper XML encoding of comments
-
-## v0.14.1
-
-* raw cell objects can be passed to `sheet_add_aoa`
-* `_FilterDatabase` fix for AutoFilter-related crashes
-* `stream.to_json` doesn't end up accidentally scanning to max row
-
-## 0.14.0 (2018-09-06)
-
-* `sheet_to_json` default flipped to `raw: true`
-
-## 0.13.5 (2018-08-25)
-
-* HTML output generates `<br/>` instead of encoded newline character
-
-## 0.13.2 (2018-07-08)
-
-* Buffer.from shim replaced, will not be defined in node `<=0.12`
-
-## 0.13.0 (2018-06-01)
-
-* Library reshaped to support AMD out of the box
-
 ## 0.12.11 (2018-04-27)

 * XLS/XLSX/XLSB range truncation (errors in `WTF` mode)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -28,13 +28,6 @@ shared or included in a test suite (although I will ask :)
 If sending email to a gmail account is problematic, the <dev@sheetjs.com> email
 inbox is self-hosted.

-# Opening Pull Requests
-
-Before opening a pull request, [squash all commits into 
-one](https://git-scm.com/book/en/v2/Git-Tools-Rewriting-History). If the pull 
-request addresses documentation or demos, add `[ci skip]` in the body or title 
-of your commit message to skip Travis checks.
-
 # Pre-Contribution Checklist

 Before thinking about contributing, make sure that:
@ -67,4 +60,4 @@ Keep these in mind as you work:

 Before contributions are merged, you will receive an email (at the address
 associated with the git commit) and will be asked to confirm the aforementioned
-items.  Ensure that the email addresses associated with the commits are valid.
+items.  Ensure that the email addresses associated with the commits is valid.
--- a/2
+++ b/2
@ -186,7 +186,7 @@
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

-   Copyright (C) 2012-present   SheetJS LLC
+   Copyright (C) 2012-present   SheetJS LLC 

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
--- a/203
+++ b/203
@ -1,36 +1,26 @@
 SHELL=/bin/bash
 LIB=xlsx
 FMT=xlsx xlsm xlsb ods xls xml misc full
-REQS=
+REQS=jszip.js
 ADDONS=dist/cpexcel.js
 AUXTARGETS=
 CMDS=bin/xlsx.njs
 HTMLLINT=index.html

-MINITGT=xlsx.mini.js
-MINIFLOW=xlsx.mini.flow.js
-MINIDEPS=$(shell cat misc/mini.lst)
-
-ESMJSTGT=xlsx.mjs
-ESMJSDEPS=$(shell cat misc/mjs.lst)
-
-
 ULIB=$(shell echo $(LIB) | tr a-z A-Z)
 DEPS=$(sort $(wildcard bits/*.js))
-TSBITS=$(patsubst modules/%,bits/%,$(wildcard modules/[0-9][0-9]_*.js))
-MTSBITS=$(patsubst modules/%,misc/%,$(wildcard modules/[0-9][0-9]_*.js))
 TARGET=$(LIB).js
 FLOWTARGET=$(LIB).flow.js
 FLOWAUX=$(patsubst %.js,%.flow.js,$(AUXTARGETS))
 AUXSCPTS=xlsxworker.js
-FLOWTGTS=$(TARGET) $(AUXTARGETS) $(AUXSCPTS) $(MINITGT)
+FLOWTGTS=$(TARGET) $(AUXTARGETS) $(AUXSCPTS)
 UGLIFYOPTS=--support-ie8 -m
 CLOSURE=/usr/local/lib/node_modules/google-closure-compiler/compiler.jar

 ## Main Targets

 .PHONY: all
-all: $(TARGET) $(AUXTARGETS) $(AUXSCPTS) $(MINITGT) $(ESMJSTGT) ## Build library and auxiliary scripts
+all: $(TARGET) $(AUXTARGETS) $(AUXSCPTS) ## Build library and auxiliary scripts

 $(FLOWTGTS): %.js : %.flow.js
 	node -e 'process.stdout.write(require("fs").readFileSync("$<","utf8").replace(/^[ \t]*\/\*[:#][^*]*\*\/\s*(\n)?/gm,"").replace(/\/\*[:#][^*]*\*\//gm,""))' > $@
@ -38,28 +28,15 @@ $(FLOWTGTS): %.js : %.flow.js
 $(FLOWTARGET): $(DEPS)
 	cat $^ | tr -d '\15\32' > $@

-$(MINIFLOW): $(MINIDEPS)
-	cat $^ | tr -d '\15\32' > $@
-
-$(ESMJSTGT): $(ESMJSDEPS)
-	cat $^ | tr -d '\15\32' > $@
-
 bits/01_version.js: package.json
 	echo "$(ULIB).version = '"`grep version package.json | awk '{gsub(/[^0-9a-z\.-]/,"",$$2); print $$2}'`"';" > $@

-#bits/18_cfb.js: node_modules/cfb/xlscfb.flow.js
-#	cp $^ $@
-
-$(TSBITS): bits/%: modules/%
+bits/18_cfb.js: node_modules/cfb/xlscfb.flow.js
 	cp $^ $@

-$(MTSBITS): misc/%: modules/%
-	cp $^ $@
-
-
 .PHONY: clean
 clean: ## Remove targets and build artifacts
-	rm -f $(TARGET) $(FLOWTARGET) $(ESMJSTGT) $(MINITGT) $(MINIFLOW)
+	rm -f $(TARGET) $(FLOWTARGET)

 .PHONY: clean-data
 clean-data:
@ -69,55 +46,46 @@ clean-data:
 init: ## Initial setup for development
 	git submodule init
 	git submodule update
-	#git submodule foreach git pull origin master
-	git submodule foreach make all
+	git submodule foreach git pull origin master
+	git submodule foreach make
 	mkdir -p tmp

 DISTHDR=misc/suppress_export.js
 .PHONY: dist
 dist: dist-deps $(TARGET) bower.json ## Prepare JS files for distribution
 	mkdir -p dist
+	<$(TARGET) sed "s/require('stream')/{}/g;s/require('....*')/undefined/g" > dist/$(TARGET)
 	cp LICENSE dist/
 	uglifyjs shim.js $(UGLIFYOPTS) -o dist/shim.min.js --preamble "$$(head -n 1 bits/00_header.js)"
-	@#
-	<$(TARGET) sed "s/require('.*')/undefined/g;s/ process / undefined /g;s/process.versions/({})/g" > dist/$(TARGET)
-	<$(MINITGT) sed "s/require('.*')/undefined/g;s/ process / undefined /g;s/process.versions/({})/g" > dist/$(MINITGT)
-	@# core
-	uglifyjs $(REQS) dist/$(TARGET) $(UGLIFYOPTS) -o dist/$(LIB).core.min.js --source-map dist/$(LIB).core.min.map --preamble "$$(head -n 1 bits/00_header.js)"
+	uglifyjs $(DISTHDR) dist/$(TARGET) $(UGLIFYOPTS) -o dist/$(LIB).min.js --source-map dist/$(LIB).min.map --preamble "$$(head -n 1 bits/00_header.js)"
+	misc/strip_sourcemap.sh dist/$(LIB).min.js
+	uglifyjs $(DISTHDR) $(REQS) dist/$(TARGET) $(UGLIFYOPTS) -o dist/$(LIB).core.min.js --source-map dist/$(LIB).core.min.map --preamble "$$(head -n 1 bits/00_header.js)"
 	misc/strip_sourcemap.sh dist/$(LIB).core.min.js
-	@# full
-	#cat <(head -n 1 bits/00_header.js) $(DISTHDR) $(REQS) $(ADDONS) dist/$(TARGET) $(AUXTARGETS) > dist/$(LIB).full.js
 	uglifyjs $(DISTHDR) $(REQS) $(ADDONS) dist/$(TARGET) $(AUXTARGETS) $(UGLIFYOPTS) -o dist/$(LIB).full.min.js --source-map dist/$(LIB).full.min.map --preamble "$$(head -n 1 bits/00_header.js)"
 	misc/strip_sourcemap.sh dist/$(LIB).full.min.js
-	@# mini
-	uglifyjs dist/$(MINITGT) $(UGLIFYOPTS) -o dist/$(LIB).mini.min.js --source-map dist/$(LIB).mini.min.map --preamble "$$(head -n 1 bits/00_header.js)"
-	misc/strip_sourcemap.sh dist/$(LIB).mini.min.js
-	@# extendscript
-	cat <(printf '\xEF\xBB\xBF') <(head -n 1 bits/00_header.js) shim.js $(DISTHDR) $(REQS) dist/$(TARGET) > dist/$(LIB).extendscript.js
-	@# zahl
-	cp modules/xlsx.zahl.js modules/xlsx.zahl.mjs dist/
-	@#
-	rm dist/$(TARGET) dist/$(MINITGT)
+	cat <(head -n 1 bits/00_header.js) shim.js $(DISTHDR) $(REQS) dist/$(TARGET) > dist/$(LIB).extendscript.js

 .PHONY: dist-deps
 dist-deps: ## Copy dependencies for distribution
 	mkdir -p dist
 	cp node_modules/codepage/dist/cpexcel.full.js dist/cpexcel.js
+	cp jszip.js dist/jszip.js

 .PHONY: aux
 aux: $(AUXTARGETS)

-BYTEFILEC=dist/xlsx.{full,core,mini}.min.js
-BYTEFILER=dist/xlsx.extendscript.js xlsx.mjs
+BYTEFILE=dist/xlsx.min.js dist/xlsx.{core,full}.min.js dist/xlsx.extendscript.js
 .PHONY: bytes
 bytes: ## Display minified and gzipped file sizes
-	@for i in $(BYTEFILEC); do npx printj "%-30s %7d %10d" $$i $$(wc -c < $$i) $$(gzip --best --stdout $$i | wc -c); done
-	@for i in $(BYTEFILER); do npx printj "%-30s %7d" $$i $$(wc -c < $$i); done
+	for i in $(BYTEFILE); do printj "%-30s %7d %10d" $$i $$(wc -c < $$i) $$(gzip --best --stdout $$i | wc -c); done

+.PHONY: graph
+graph: formats.png legend.png ## Rebuild format conversion graph
+formats.png: formats.dot
+	circo -Tpng -o$@ $<
+legend.png: misc/legend.dot
+	dot -Tpng -o$@ $<

-.PHONY: git
-git: ## show version string
-	@echo "$$(node -pe 'require("./package.json").version')"

 .PHONY: nexe
 nexe: xlsx.exe ## Build nexe standalone executable
@ -139,51 +107,11 @@ test mocha: test.js ## Run test suite

 #*                      To run tests for one format, make test_<fmt>
 #*                      To run the core test suite, make test_misc
-
-.PHONY: test-esm
-test-esm: test.mjs ## Run Node ESM test suite
-	npx -y mocha@9 -R spec -t 30000 $<
-
-test.ts: test.mts
-	node -pe 'var data = fs.readFileSync("'$<'", "utf8"); data.split("\n").map(function(l) { return l.replace(/^describe\((.*?)function\(\)/, "Deno.test($$1async function(t)").replace(/\b(?:it|describe)\((.*?)function\(\)/g, "await t.step($$1async function(t)").replace("assert.ok", "assert.assert"); }).join("\n")' > $@
-
-.PHONY: test-bun
-test-bun: testbun.mjs ## Run Bun test suite
-	bun $<
-
-.PHONY: test-deno
-test-deno: test.ts ## Run Deno test suite
-	deno test --check --allow-env --allow-read --allow-write --config misc/test.deno.jsonc $<
-
-.PHONY: test-denocp
-test-denocp: testnocp.ts ## Run Deno test suite (without codepage)
-	deno test --check --allow-env --allow-read --allow-write --config misc/test.deno.jsonc $<
-
 TESTFMT=$(patsubst %,test_%,$(FMT))
 .PHONY: $(TESTFMT)
 $(TESTFMT): test_%:
 	FMTS=$* make test

-TESTESMFMT=$(patsubst %,test-esm_%,$(FMT))
-.PHONY: $(TESTESMFMT)
-$(TESTESMFMT): test-esm_%:
-	FMTS=$* make test-esm
-
-TESTDENOFMT=$(patsubst %,test-deno_%,$(FMT))
-.PHONY: $(TESTDENOFMT)
-$(TESTDENOFMT): test-deno_%:
-	FMTS=$* make test-deno
-
-TESTDENOCPFMT=$(patsubst %,test-denocp_%,$(FMT))
-.PHONY: $(TESTDENOCPFMT)
-$(TESTDENOCPFMT): test-denocp_%:
-	FMTS=$* make test-denocp
-
-TESTBUNFMT=$(patsubst %,test-bun_%,$(FMT))
-.PHONY: $(TESTBUNFMT)
-$(TESTBUNFMT): test-bun_%:
-	FMTS=$* make test-bun
-
 .PHONY: travis
 travis: ## Run test suite with minimal output
 	mocha -R dot -t 30000
@ -194,40 +122,77 @@ ctest: ## Build browser test fixtures

 .PHONY: ctestserv
 ctestserv: ## Start a test server on port 8000
-	@cd tests && python -mSimpleHTTPServer || python3 -mhttp.server || npx -y http-server -p 8000 .
+	@cd tests && python -mSimpleHTTPServer
+
+## Demos
+
+DEMOS=angular angular-new browserify requirejs rollup systemjs webpack
+DEMOTGTS=$(patsubst %,demo-%,$(DEMOS))
+.PHONY: demos
+demos: $(DEMOTGTS)
+
+.PHONY: demo-angular
+demo-angular: ## Run angular demo build
+	#make -C demos/angular
+	@echo "start a local server and go to demos/angular/angular.html"
+
+.PHONY: demo-angular-new
+demo-angular-new: ## Run angular 2 demo build
+	make -C demos/angular2
+	@echo "go to demos/angular/angular.html and run 'ng serve'"
+
+.PHONY: demo-browserify
+demo-browserify: ## Run browserify demo build
+	make -C demos/browserify
+	@echo "start a local server and go to demos/browserify/browserify.html"
+
+.PHONY: demo-webpack
+demo-webpack: ## Run webpack demo build
+	make -C demos/webpack
+	@echo "start a local server and go to demos/webpack/webpack.html"
+
+.PHONY: demo-requirejs
+demo-requirejs: ## Run requirejs demo build
+	make -C demos/requirejs
+	@echo "start a local server and go to demos/requirejs/requirejs.html"
+
+.PHONY: demo-rollup
+demo-rollup: ## Run rollup demo build
+	make -C demos/rollup
+	@echo "start a local server and go to demos/rollup/rollup.html"
+
+.PHONY: demo-systemjs
+demo-systemjs: ## Run systemjs demo build
+	make -C demos/systemjs

 ## Code Checking

 .PHONY: fullint
-fullint: lint mdlint ## Run all checks (removed: old-lint, tslint, flow)
+fullint: lint old-lint tslint flow mdlint ## Run all checks

 .PHONY: lint
 lint: $(TARGET) $(AUXTARGETS) ## Run eslint checks
-	@./node_modules/.bin/eslint --ext .js,.njs,.json,.html,.htm $(FLOWTARGET) $(AUXTARGETS) $(CMDS) $(HTMLLINT) package.json bower.json
-	@if [ -x "$(CLOSURE)" ]; then java -jar $(CLOSURE) $(REQS) $(FLOWTARGET) --jscomp_warning=reportUnknownTypes >/dev/null; fi
+	@eslint --ext .js,.njs,.json,.html,.htm $(TARGET) $(AUXTARGETS) $(CMDS) $(HTMLLINT) package.json bower.json
+	if [ -e $(CLOSURE) ]; then java -jar $(CLOSURE) $(REQS) $(FLOWTARGET) --jscomp_warning=reportUnknownTypes >/dev/null; fi

 .PHONY: old-lint
 old-lint: $(TARGET) $(AUXTARGETS) ## Run jshint and jscs checks
-	@./node_modules/.bin/jscs $(TARGET) $(AUXTARGETS) test.js
-	@./node_modules/.bin/jshint --show-non-errors $(TARGET) $(AUXTARGETS)
-	@./node_modules/.bin/jshint --show-non-errors $(CMDS)
-	@./node_modules/.bin/jshint --show-non-errors package.json bower.json test.js
-	@./node_modules/.bin/jshint --show-non-errors --extract=always $(HTMLLINT)
-	@if [ -x "$(CLOSURE)" ]; then java -jar $(CLOSURE) $(REQS) $(FLOWTARGET) --jscomp_warning=reportUnknownTypes >/dev/null; fi
+	@jshint --show-non-errors $(TARGET) $(AUXTARGETS)
+	@jshint --show-non-errors $(CMDS)
+	@jshint --show-non-errors package.json bower.json test.js
+	@jshint --show-non-errors --extract=always $(HTMLLINT)
+	@jscs $(TARGET) $(AUXTARGETS) test.js
+	if [ -e $(CLOSURE) ]; then java -jar $(CLOSURE) $(REQS) $(FLOWTARGET) --jscomp_warning=reportUnknownTypes >/dev/null; fi

 .PHONY: tslint
 tslint: $(TARGET) ## Run typescript checks
 	#@npm install dtslint typescript
 	#@npm run-script dtslint
-	./node_modules/.bin/dtslint types
+	dtslint types

 .PHONY: flow
 flow: lint ## Run flow checker
-	@./node_modules/.bin/flow check --all --show-all-errors --include-warnings
-
-.PHONY: mjslint
-mjslint: $(ESMJSTGT) ## Lint the ESM build
-	@npx eslint -c .eslintmjs $<
+	@flow check --all --show-all-errors --include-warnings

 .PHONY: cov
 cov: misc/coverage.html ## Run coverage test
@ -245,12 +210,26 @@ misc/coverage.html: $(TARGET) test.js
 coveralls: ## Coverage Test + Send to coveralls.io
 	mocha --require blanket --reporter mocha-lcov-reporter -t 30000 | node ./node_modules/coveralls/bin/coveralls.js

+READEPS=$(sort $(wildcard docbits/*.md))
+README.md: $(READEPS)
+	awk 'FNR==1{p=0}/#/{p=1}p' $^ | tr -d '\15\32' > $@
+
+.PHONY: readme
+readme: README.md ## Update README Table of Contents
+	markdown-toc -i README.md
+
+.PHONY: book
+book: readme graph ## Update summary for documentation
+	printf "# Summary\n\n- [xlsx](README.md#sheetjs-js-xlsx)\n" > misc/docs/SUMMARY.md
+	markdown-toc README.md | sed 's/(#/(README.md#/g'>> misc/docs/SUMMARY.md
+	<README.md grep -vE "(details|summary)>" > misc/docs/README.md
+
 DEMOMDS=$(sort $(wildcard demos/*/README.md))
-MDLINT=$(DEMOMDS) README.md demos/README.md
+MDLINT=$(DEMOMDS) $(READEPS) demos/README.md
 .PHONY: mdlint
 mdlint: $(MDLINT) ## Check markdown documents
-	./node_modules/.bin/alex $^
-	./node_modules/.bin/mdspell -a -n -x -r --en-us $^
+	alex $^
+	mdspell -a -n -x -r --en-us $^

 .PHONY: help
 help:
--- a/README.md
+++ b/README.md
--- a/bin/xlsx.njs
+++ b/bin/xlsx.njs
@ -4,22 +4,8 @@
 /* vim: set ts=2 ft=javascript: */
 var n = "xlsx";
 var X = require('../');
-try { X = require('../xlsx.flow'); } catch(e) {}
-try { require('exit-on-epipe'); } catch(e) {}
-var fs = require('fs'), program;
-try { program = require('commander'); } catch(e) {
-	[
-		"The `xlsx` command line tool is deprecated in favor of `xlsx-cli`.",
-		"",
-		"For new versions of node, we recommend using `npx`:",
-		"    $ npx xlsx-cli --help",
-		"",
-		"For older versions of node, explicitly install `xlsx-cli` globally:",
-		"    $ npm i -g xlsx-cli",
-		"    $ xlsx-cli --help"
-	].forEach(function(m) { console.error(m); });
-	process.exit(1);
-}
+require('exit-on-epipe');
+var fs = require('fs'), program = require('commander');
 program
 	.version(X.version)
 	.usage('[options] <file> [sheetname]')
@ -37,14 +23,12 @@ program
 	.option('-Y, --ods',  'emit ODS  to <sheetname> or <file>.ods')
 	.option('-8, --xls',  'emit XLS  to <sheetname> or <file>.xls (BIFF8)')
 	.option('-5, --biff5','emit XLS  to <sheetname> or <file>.xls (BIFF5)')
-	.option('-4, --biff4','emit XLS  to <sheetname> or <file>.xls (BIFF4)')
-	.option('-3, --biff3','emit XLS  to <sheetname> or <file>.xls (BIFF3)')
+	//.option('-4, --biff4','emit XLS  to <sheetname> or <file>.xls (BIFF4)')
+	//.option('-3, --biff3','emit XLS  to <sheetname> or <file>.xls (BIFF3)')
 	.option('-2, --biff2','emit XLS  to <sheetname> or <file>.xls (BIFF2)')
 	.option('-i, --xla',  'emit XLA to <sheetname> or <file>.xla')
 	.option('-6, --xlml', 'emit SSML to <sheetname> or <file>.xls (2003 XML)')
 	.option('-T, --fods', 'emit FODS to <sheetname> or <file>.fods (Flat ODS)')
-	.option('--wk3',      'emit WK3  to <sheetname> or <file>.txt (Lotus WK3)')
-	.option('--numbers',  'emit NUMBERS to <sheetname> or <file>.numbers')

 	.option('-S, --formulae', 'emit list of values and formulae')
 	.option('-j, --json',     'emit formatted JSON (all fields text)')
@ -58,7 +42,6 @@ program
 	.option('-E, --eth',  'emit ETH  to <sheetname> or <file>.eth (Ethercalc)')
 	.option('-t, --txt',  'emit TXT  to <sheetname> or <file>.txt (UTF-8 TSV)')
 	.option('-r, --rtf',  'emit RTF  to <sheetname> or <file>.txt (Table RTF)')
-	.option('--wk1',      'emit WK1  to <sheetname> or <file>.txt (Lotus WK1)')
 	.option('-z, --dump', 'dump internal representation as JSON')
 	.option('--props',    'dump workbook properties as CSV')

@ -91,10 +74,8 @@ var workbook_formats = [
 	['xls',     'xls',  'xls'],
 	['xla',     'xla',  'xla'],
 	['biff5', 'biff5',  'xls'],
-	['numbers', 'numbers', 'numbers'],
 	['ods',     'ods',  'ods'],
-	['fods',   'fods', 'fods'],
-	['wk3',     'wk3',  'wk3']
+	['fods',   'fods', 'fods']
 ];
 var wb_formats_2 = [
 	['xlml',   'xlml', 'xls']
@ -131,7 +112,6 @@ function wb_fmt() {
 	seen = true;
 	opts.cellFormula = true;
 	opts.cellNF = true;
-	opts.xlfn = true;
 	if(program.output) sheetname = program.output;
 }
 function isfmt(m/*:string*/)/*:boolean*/ {
@ -156,9 +136,7 @@ if(program.all) {
 	opts.cellStyles = true;
 	opts.sheetStubs = true;
 	opts.cellDates = true;
-	wopts.cellFormula = true;
 	wopts.cellStyles = true;
-	wopts.sheetStubs = true;
 	wopts.bookVBA = true;
 }
 if(program.sparse) opts.dense = false; else opts.dense = true;
@ -187,30 +165,26 @@ if(program.dump) {
 	process.exit(0);
 }
 if(program.props) {
-	if(wb) dump_props(wb);
+	dump_props(wb);
 	process.exit(0);
 }

 /* full workbook formats */
 workbook_formats.forEach(function(m) { if(program[m[0]] || isfmt(m[0])) {
 		wopts.bookType = m[1];
-		if(wopts.bookType == "numbers") try {
-			var XLSX_ZAHL = require("../dist/xlsx.zahl");
-			wopts.numbers = XLSX_ZAHL;
-		} catch(e) {}
-		if(wb) X.writeFile(wb, program.output || sheetname || ((filename || "") + "." + m[2]), wopts);
+		X.writeFile(wb, program.output || sheetname || ((filename || "") + "." + m[2]), wopts);
 		process.exit(0);
 } });

 wb_formats_2.forEach(function(m) { if(program[m[0]] || isfmt(m[0])) {
 		wopts.bookType = m[1];
-		if(wb) X.writeFile(wb, program.output || sheetname || ((filename || "") + "." + m[2]), wopts);
+		X.writeFile(wb, program.output || sheetname || ((filename || "") + "." + m[2]), wopts);
 		process.exit(0);
 } });

 var target_sheet = sheetname || '';
 if(target_sheet === '') {
-	if(+program.sheetIndex < (wb.SheetNames||[]).length) target_sheet = wb.SheetNames[+program.sheetIndex];
+	if(program.sheetIndex < (wb.SheetNames||[]).length) target_sheet = wb.SheetNames[program.sheetIndex];
 	else target_sheet = (wb.SheetNames||[""])[0];
 }

@ -240,7 +214,6 @@ if(!program.quiet && !program.book) console.error(target_sheet);
 	['rtf', '.rtf'],
 	['txt', '.txt'],
 	['dbf', '.dbf'],
-	['wk1', '.wk1'],
 	['dif', '.dif']
 ].forEach(function(m) { if(program[m[0]] || isfmt(m[1])) {
 	wopts.bookType = m[0];
@ -281,28 +254,28 @@ switch(true) {

 	default:
 		if(!program.book) {
-			var stream = X.stream.to_csv(ws, {FS:program.fieldSep||",", RS:program.rowSep||"\n"});
+			var stream = X.stream.to_csv(ws, {FS:program.fieldSep, RS:program.rowSep});
 			if(program.output) stream.pipe(fs.createWriteStream(program.output));
 			else stream.pipe(process.stdout);
 		} else doit(function(ws) { return X.utils.sheet_to_csv(ws,{FS:program.fieldSep, RS:program.rowSep}); });
 		break;
 }

-function dump_props(wb/*:Workbook*/) {
+function dump_props(wb) {
 	var propaoa = [];
 	if(Object.assign && Object.entries) propaoa = Object.entries(Object.assign({}, wb.Props, wb.Custprops));
 	else {
-		var Keys/*:: :Array<string> = []*/, pi;
+		var Keys, pi;
 		if(wb.Props) {
 			Keys = Object.keys(wb.Props);
 			for(pi = 0; pi < Keys.length; ++pi) {
-				if(Object.prototype.hasOwnProperty.call(Keys, Keys[pi])) propaoa.push([Keys[pi], Keys[/*::+*/Keys[pi]]]);
+				if(Keys.hasOwnProperty(Keys[pi])) propaoa.push([Keys[pi], Keys[Keys[pi]]]);
 			}
 		}
 		if(wb.Custprops) {
 			Keys = Object.keys(wb.Custprops);
 			for(pi = 0; pi < Keys.length; ++pi) {
-				if(Object.prototype.hasOwnProperty.call(Keys, Keys[pi])) propaoa.push([Keys[pi], Keys[/*::+*/Keys[pi]]]);
+				if(Keys.hasOwnProperty(Keys[pi])) propaoa.push([Keys[pi], Keys[Keys[pi]]]);
 			}
 		}
 	}
--- a/bits/00_header.js
+++ b/bits/00_header.js
@ -1,6 +1,6 @@
-/*! xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
+/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
 /* vim: set ts=2: */
 /*exported XLSX */
-/*global global, exports, module, require:false, process:false, Buffer:false, ArrayBuffer:false, DataView:false, Deno:false */
+/*global global, exports, module, require:false, process:false, Buffer:false, ArrayBuffer:false */
 var XLSX = {};
-function make_xlsx_lib(XLSX){
+(function make_xlsx(XLSX){
--- a/bits/01_version.js
+++ b/bits/01_version.js
@ -1 +1 @@
-XLSX.version = '0.19.1';
+XLSX.version = '0.12.12';
--- a/bits/02_codepage.js
+++ b/bits/02_codepage.js
@ -1,9 +1,15 @@
 var current_codepage = 1200, current_ansi = 1252;
 /*:: declare var cptable:any; */
 /*global cptable:true, window */
-var $cptable;
+if(typeof module !== "undefined" && typeof require !== 'undefined') {
+	if(typeof cptable === 'undefined') {
+		if(typeof global !== 'undefined') global.cptable = require('./dist/cpexcel.js');
+		else if(typeof window !== 'undefined') window.cptable = require('./dist/cpexcel.js');
+	}
+}

-var VALID_ANSI = [ 874, 932, 936, 949, 950, 1250, 1251, 1252, 1253, 1254, 1255, 1256, 1257, 1258, 10000 ];
+var VALID_ANSI = [ 874, 932, 936, 949, 950 ];
+for(var i = 0; i <= 8; ++i) VALID_ANSI.push(1250 + i);
 /* ECMA-376 Part I 18.4.1 charset to codepage mapping */
 var CS2CP = ({
 	/*::[*/0/*::]*/:    1252, /* ANSI */
@ -56,21 +62,14 @@ var debom = function(data/*:string*/)/*:string*/ {
 };

 var _getchar = function _gc1(x/*:number*/)/*:string*/ { return String.fromCharCode(x); };
-var _getansi = function _ga1(x/*:number*/)/*:string*/ { return String.fromCharCode(x); };
-
-function set_cptable(cptable) {
-	$cptable = cptable;
-	set_cp = function(cp/*:number*/) { current_codepage = cp; set_ansi(cp); };
+if(typeof cptable !== 'undefined') {
+	set_cp = function(cp/*:number*/) { current_codepage = cp; };
 	debom = function(data/*:string*/) {
-		if(data.charCodeAt(0) === 0xFF && data.charCodeAt(1) === 0xFE) { return $cptable.utils.decode(1200, char_codes(data.slice(2))); }
+		if(data.charCodeAt(0) === 0xFF && data.charCodeAt(1) === 0xFE) { return cptable.utils.decode(1200, char_codes(data.slice(2))); }
 		return data;
 	};
 	_getchar = function _gc2(x/*:number*/)/*:string*/ {
 		if(current_codepage === 1200) return String.fromCharCode(x);
-		return $cptable.utils.decode(current_codepage, [x&255,x>>8])[0];
+		return cptable.utils.decode(current_codepage, [x&255,x>>8])[0];
 	};
-	_getansi = function _ga2(x/*:number*/)/*:string*/ {
-		return $cptable.utils.decode(current_ansi, [x])[0];
-	};
-	cpdoit();
 }
--- a/bits/04_base64.js
+++ b/bits/04_base64.js
@ -1,69 +1,44 @@
-var Base64_map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
-function Base64_encode(input) {
-  var o = "";
-  var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
-  for (var i = 0; i < input.length; ) {
-    c1 = input.charCodeAt(i++);
-    e1 = c1 >> 2;
-    c2 = input.charCodeAt(i++);
-    e2 = (c1 & 3) << 4 | c2 >> 4;
-    c3 = input.charCodeAt(i++);
-    e3 = (c2 & 15) << 2 | c3 >> 6;
-    e4 = c3 & 63;
-    if (isNaN(c2)) {
-      e3 = e4 = 64;
-    } else if (isNaN(c3)) {
-      e4 = 64;
-    }
-    o += Base64_map.charAt(e1) + Base64_map.charAt(e2) + Base64_map.charAt(e3) + Base64_map.charAt(e4);
-  }
-  return o;
-}
-function Base64_encode_pass(input) {
-  var o = "";
-  var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
-  for (var i = 0; i < input.length; ) {
-    c1 = input.charCodeAt(i++);
-    if (c1 > 255)
-      c1 = 95;
-    e1 = c1 >> 2;
-    c2 = input.charCodeAt(i++);
-    if (c2 > 255)
-      c2 = 95;
-    e2 = (c1 & 3) << 4 | c2 >> 4;
-    c3 = input.charCodeAt(i++);
-    if (c3 > 255)
-      c3 = 95;
-    e3 = (c2 & 15) << 2 | c3 >> 6;
-    e4 = c3 & 63;
-    if (isNaN(c2)) {
-      e3 = e4 = 64;
-    } else if (isNaN(c3)) {
-      e4 = 64;
-    }
-    o += Base64_map.charAt(e1) + Base64_map.charAt(e2) + Base64_map.charAt(e3) + Base64_map.charAt(e4);
-  }
-  return o;
-}
-function Base64_decode(input) {
-  var o = "";
-  var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
-  input = input.replace(/^data:([^\/]+\/[^\/]+)?;base64\,/, "").replace(/[^\w\+\/\=]/g, "");
-  for (var i = 0; i < input.length; ) {
-    e1 = Base64_map.indexOf(input.charAt(i++));
-    e2 = Base64_map.indexOf(input.charAt(i++));
-    c1 = e1 << 2 | e2 >> 4;
-    o += String.fromCharCode(c1);
-    e3 = Base64_map.indexOf(input.charAt(i++));
-    c2 = (e2 & 15) << 4 | e3 >> 2;
-    if (e3 !== 64) {
-      o += String.fromCharCode(c2);
-    }
-    e4 = Base64_map.indexOf(input.charAt(i++));
-    c3 = (e3 & 3) << 6 | e4;
-    if (e4 !== 64) {
-      o += String.fromCharCode(c3);
-    }
-  }
-  return o;
-}
+var Base64 = (function make_b64(){
+	var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+	return {
+		encode: function(input/*:string*/)/*:string*/ {
+			var o = "";
+			var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
+			for(var i = 0; i < input.length; ) {
+				c1 = input.charCodeAt(i++);
+				e1 = (c1 >> 2);
+
+				c2 = input.charCodeAt(i++);
+				e2 = ((c1 & 3) << 4) | (c2 >> 4);
+
+				c3 = input.charCodeAt(i++);
+				e3 = ((c2 & 15) << 2) | (c3 >> 6);
+				e4 = (c3 & 63);
+				if (isNaN(c2)) { e3 = e4 = 64; }
+				else if (isNaN(c3)) { e4 = 64; }
+				o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
+			}
+			return o;
+		},
+		decode: function b64_decode(input/*:string*/)/*:string*/ {
+			var o = "";
+			var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
+			input = input.replace(/[^\w\+\/\=]/g, "");
+			for(var i = 0; i < input.length;) {
+				e1 = map.indexOf(input.charAt(i++));
+				e2 = map.indexOf(input.charAt(i++));
+				c1 = (e1 << 2) | (e2 >> 4);
+				o += String.fromCharCode(c1);
+
+				e3 = map.indexOf(input.charAt(i++));
+				c2 = ((e2 & 15) << 4) | (e3 >> 2);
+				if (e3 !== 64) { o += String.fromCharCode(c2); }
+
+				e4 = map.indexOf(input.charAt(i++));
+				c3 = ((e3 & 3) << 6) | e4;
+				if (e4 !== 64) { o += String.fromCharCode(c3); }
+			}
+			return o;
+		}
+	};
+})();
--- a/bits/05_buf.js
+++ b/bits/05_buf.js
@ -1,38 +1,20 @@
-var has_buf = /*#__PURE__*/(function() { return typeof Buffer !== 'undefined' && typeof process !== 'undefined' && typeof process.versions !== 'undefined' && !!process.versions.node; })();
-
-var Buffer_from = /*#__PURE__*/(function() {
-	if(typeof Buffer !== 'undefined') {
-		var nbfs = !Buffer.from;
-		if(!nbfs) try { Buffer.from("foo", "utf8"); } catch(e) { nbfs = true; }
-		return nbfs ? function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); } : Buffer.from.bind(Buffer);
-	}
-	return function() {};
-})();
-var buf_utf16le = /*#__PURE__*/(function() {
-	if(typeof Buffer === 'undefined') return false;
-	var x = Buffer_from([65,0]);
-	if(!x) return false;
-	var o = x.toString("utf16le");
-	return o.length == 1;
-})();
+var has_buf = (typeof Buffer !== 'undefined' && typeof process !== 'undefined' && typeof process.versions !== 'undefined' && process.versions.node);

+if(typeof Buffer !== 'undefined') {
+	// $FlowIgnore
+	if(!Buffer.from) Buffer.from = function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); };
+	// $FlowIgnore
+	if(!Buffer.alloc) Buffer.alloc = function(n) { return new Buffer(n); };
+}

 function new_raw_buf(len/*:number*/) {
 	/* jshint -W056 */
-	if(has_buf) return Buffer.alloc ? Buffer.alloc(len) : new Buffer(len);
-	return typeof Uint8Array != "undefined" ? new Uint8Array(len) : new Array(len);
-	/* jshint +W056 */
-}
-
-function new_unsafe_buf(len/*:number*/) {
-	/* jshint -W056 */
-	if(has_buf) return Buffer.allocUnsafe ? Buffer.allocUnsafe(len) : new Buffer(len);
-	return typeof Uint8Array != "undefined" ? new Uint8Array(len) : new Array(len);
+	return has_buf ? Buffer.alloc(len) : new Array(len);
 	/* jshint +W056 */
 }

 var s2a = function s2a(s/*:string*/)/*:any*/ {
-	if(has_buf) return Buffer_from(s, "binary");
+	if(has_buf) return Buffer.from(s, "binary");
 	return s.split("").map(function(x/*:string*/)/*:number*/{ return x.charCodeAt(0) & 0xff; });
 };

@ -44,8 +26,8 @@ function s2ab(s/*:string*/)/*:any*/ {
 }

 function a2s(data/*:any*/)/*:string*/ {
-	if(Array.isArray(data)) return data.map(function(c) { return String.fromCharCode(c); }).join("");
-	var o/*:Array<string>*/ = []; for(var i = 0; i < data.length; ++i) o[i] = String.fromCharCode(data[i]); return o.join("");
+	if(Array.isArray(data)) return data.map(_chr).join("");
+	var o/*:Array<string>*/ = []; for(var i = 0; i < data.length; ++i) o[i] = _chr(data[i]); return o.join("");
 }

 function a2u(data/*:Array<number>*/)/*:Uint8Array*/ {
@ -62,53 +44,6 @@ function ab2a(data/*:ArrayBuffer|Uint8Array*/)/*:Array<number>*/ {
 	return o;
 }

-var bconcat = has_buf ? function(bufs) { return Buffer.concat(bufs.map(function(buf) { return Buffer.isBuffer(buf) ? buf : Buffer_from(buf); })); } : function(bufs) {
-	if(typeof Uint8Array !== "undefined") {
-		var i = 0, maxlen = 0;
-		for(i = 0; i < bufs.length; ++i) maxlen += bufs[i].length;
-		var o = new Uint8Array(maxlen);
-		var len = 0;
-		for(i = 0, maxlen = 0; i < bufs.length; maxlen += len, ++i) {
-			len = bufs[i].length;
-			if(bufs[i] instanceof Uint8Array) o.set(bufs[i], maxlen);
-			else if(typeof bufs[i] == "string") o.set(new Uint8Array(s2a(bufs[i])), maxlen);
-			else o.set(new Uint8Array(bufs[i]), maxlen);
-		}
-		return o;
-	}
-	return [].concat.apply([], bufs.map(function(buf) { return Array.isArray(buf) ? buf : [].slice.call(buf); }));
-};
-
-function utf8decode(content/*:string*/) {
-	var out = [], widx = 0, L = content.length + 250;
-	var o = new_raw_buf(content.length + 255);
-	for(var ridx = 0; ridx < content.length; ++ridx) {
-		var c = content.charCodeAt(ridx);
-		if(c < 0x80) o[widx++] = c;
-		else if(c < 0x800) {
-			o[widx++] = (192|((c>>6)&31));
-			o[widx++] = (128|(c&63));
-		} else if(c >= 0xD800 && c < 0xE000) {
-			c = (c&1023)+64;
-			var d = content.charCodeAt(++ridx)&1023;
-			o[widx++] = (240|((c>>8)&7));
-			o[widx++] = (128|((c>>2)&63));
-			o[widx++] = (128|((d>>6)&15)|((c&3)<<4));
-			o[widx++] = (128|(d&63));
-		} else {
-			o[widx++] = (224|((c>>12)&15));
-			o[widx++] = (128|((c>>6)&63));
-			o[widx++] = (128|(c&63));
-		}
-		if(widx > L) {
-			out.push(o.slice(0, widx));
-			widx = 0;
-			o = new_raw_buf(65535);
-			L = 65530;
-		}
-	}
-	out.push(o.slice(0, widx));
-	return bconcat(out);
-}
+var bconcat = function(bufs) { return [].concat.apply([], bufs); };

 var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/g;
--- a/bits/09_types.js
+++ b/bits/09_types.js
@ -15,4 +15,5 @@ type EvertArrType = {[string]:Array<string>};

 type StringConv = {(string):string};

+type WriteObjStrFactory = {from_sheet(ws:Worksheet, o:any, wb:?Workbook):string};
 */
--- a/bits/10_ssf.js
+++ b/bits/10_ssf.js
@ -1,15 +1,21 @@
 /* ssf.js (C) 2013-present SheetJS -- http://sheetjs.com */
 /*jshint -W041 */
+var SSF/*:SSFModule*/ = ({}/*:any*/);
+var make_ssf = function make_ssf(SSF/*:SSFModule*/){
+SSF.version = '0.10.2';
 function _strrev(x/*:string*/)/*:string*/ { var o = "", i = x.length-1; while(i>=0) o += x.charAt(i--); return o; }
+function fill(c/*:string*/,l/*:number*/)/*:string*/ { var o = ""; while(o.length < l) o+=c; return o; }
 function pad0(v/*:any*/,d/*:number*/)/*:string*/{var t=""+v; return t.length>=d?t:fill('0',d-t.length)+t;}
 function pad_(v/*:any*/,d/*:number*/)/*:string*/{var t=""+v;return t.length>=d?t:fill(' ',d-t.length)+t;}
 function rpad_(v/*:any*/,d/*:number*/)/*:string*/{var t=""+v; return t.length>=d?t:t+fill(' ',d-t.length);}
 function pad0r1(v/*:any*/,d/*:number*/)/*:string*/{var t=""+Math.round(v); return t.length>=d?t:fill('0',d-t.length)+t;}
 function pad0r2(v/*:any*/,d/*:number*/)/*:string*/{var t=""+v; return t.length>=d?t:fill('0',d-t.length)+t;}
-var p2_32 = /*#__PURE__*/Math.pow(2,32);
+var p2_32 = Math.pow(2,32);
 function pad0r(v/*:any*/,d/*:number*/)/*:string*/{if(v>p2_32||v<-p2_32) return pad0r1(v,d); var i = Math.round(v); return pad0r2(i,d); }
-/* yes, in 2022 this is still faster than string compare */
-function SSF_isgeneral(s/*:string*/, i/*:?number*/)/*:boolean*/ { i = i || 0; return s.length >= 7 + i && (s.charCodeAt(i)|32) === 103 && (s.charCodeAt(i+1)|32) === 101 && (s.charCodeAt(i+2)|32) === 110 && (s.charCodeAt(i+3)|32) === 101 && (s.charCodeAt(i+4)|32) === 114 && (s.charCodeAt(i+5)|32) === 97 && (s.charCodeAt(i+6)|32) === 108; }
+function isgeneral(s/*:string*/, i/*:?number*/)/*:boolean*/ { i = i || 0; return s.length >= 7 + i && (s.charCodeAt(i)|32) === 103 && (s.charCodeAt(i+1)|32) === 101 && (s.charCodeAt(i+2)|32) === 110 && (s.charCodeAt(i+3)|32) === 101 && (s.charCodeAt(i+4)|32) === 114 && (s.charCodeAt(i+5)|32) === 97 && (s.charCodeAt(i+6)|32) === 108; }
+/*::
+type SSF_write_num = {(type:string, fmt:string, val:number):string};
+*/
 var days/*:Array<Array<string> >*/ = [
 	['Sun', 'Sunday'],
 	['Mon', 'Monday'],
@ -33,8 +39,7 @@ var months/*:Array<Array<string> >*/ = [
 	['N', 'Nov', 'November'],
 	['D', 'Dec', 'December']
 ];
-function SSF_init_table(t/*:any*/) {
-	if(!t) t = {};
+function init_table(t/*:any*/) {
 	t[0]=  'General';
 	t[1]=  '0';
 	t[2]=  '0.00';
@ -64,96 +69,12 @@ function SSF_init_table(t/*:any*/) {
 	t[48]= '##0.0E+0';
 	t[49]= '@';
 	t[56]= '"上午/下午 "hh"時"mm"分"ss"秒 "';
-	return t;
+	t[65535]= 'General';
 }
-/* repeated to satiate webpack */
-var table_fmt = {
-	0:  'General',
-	1:  '0',
-	2:  '0.00',
-	3:  '#,##0',
-	4:  '#,##0.00',
-	9:  '0%',
-	10: '0.00%',
-	11: '0.00E+00',
-	12: '# ?/?',
-	13: '# ??/??',
-	14: 'm/d/yy',
-	15: 'd-mmm-yy',
-	16: 'd-mmm',
-	17: 'mmm-yy',
-	18: 'h:mm AM/PM',
-	19: 'h:mm:ss AM/PM',
-	20: 'h:mm',
-	21: 'h:mm:ss',
-	22: 'm/d/yy h:mm',
-	37: '#,##0 ;(#,##0)',
-	38: '#,##0 ;[Red](#,##0)',
-	39: '#,##0.00;(#,##0.00)',
-	40: '#,##0.00;[Red](#,##0.00)',
-	45: 'mm:ss',
-	46: '[h]:mm:ss',
-	47: 'mmss.0',
-	48: '##0.0E+0',
-	49: '@',
-	56: '"上午/下午 "hh"時"mm"分"ss"秒 "'
-};

-/* Defaults determined by systematically testing in Excel 2019 */
-
-/* These formats appear to default to other formats in the table */
-var SSF_default_map = {
-	5:  37, 6:  38, 7:  39, 8:  40,         //  5 -> 37 ...  8 -> 40
-
-	23:  0, 24:  0, 25:  0, 26:  0,         // 23 ->  0 ... 26 ->  0
-
-	27: 14, 28: 14, 29: 14, 30: 14, 31: 14, // 27 -> 14 ... 31 -> 14
-
-	50: 14, 51: 14, 52: 14, 53: 14, 54: 14, // 50 -> 14 ... 58 -> 14
-	55: 14, 56: 14, 57: 14, 58: 14,
-	59:  1, 60:  2, 61:  3, 62:  4,         // 59 ->  1 ... 62 ->  4
-
-	67:  9, 68: 10,                         // 67 ->  9 ... 68 -> 10
-	69: 12, 70: 13, 71: 14,                 // 69 -> 12 ... 71 -> 14
-	72: 14, 73: 15, 74: 16, 75: 17,         // 72 -> 14 ... 75 -> 17
-	76: 20, 77: 21, 78: 22,                 // 76 -> 20 ... 78 -> 22
-	79: 45, 80: 46, 81: 47,                 // 79 -> 45 ... 81 -> 47
-	82: 0                                   // 82 ->  0 ... 65536 -> 0 (omitted)
-};
-
-
-/* These formats technically refer to Accounting formats with no equivalent */
-var SSF_default_str = {
-	//  5 -- Currency,   0 decimal, black negative
-	5:  '"$"#,##0_);\\("$"#,##0\\)',
-	63: '"$"#,##0_);\\("$"#,##0\\)',
-
-	//  6 -- Currency,   0 decimal, red   negative
-	6:  '"$"#,##0_);[Red]\\("$"#,##0\\)',
-	64: '"$"#,##0_);[Red]\\("$"#,##0\\)',
-
-	//  7 -- Currency,   2 decimal, black negative
-	7:  '"$"#,##0.00_);\\("$"#,##0.00\\)',
-	65: '"$"#,##0.00_);\\("$"#,##0.00\\)',
-
-	//  8 -- Currency,   2 decimal, red   negative
-	8:  '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
-	66: '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
-
-	// 41 -- Accounting, 0 decimal, No Symbol
-	41: '_(* #,##0_);_(* \\(#,##0\\);_(* "-"_);_(@_)',
-
-	// 42 -- Accounting, 0 decimal, $  Symbol
-	42: '_("$"* #,##0_);_("$"* \\(#,##0\\);_("$"* "-"_);_(@_)',
-
-	// 43 -- Accounting, 2 decimal, No Symbol
-	43: '_(* #,##0.00_);_(* \\(#,##0.00\\);_(* "-"??_);_(@_)',
-
-	// 44 -- Accounting, 2 decimal, $  Symbol
-	44: '_("$"* #,##0.00_);_("$"* \\(#,##0.00\\);_("$"* "-"??_);_(@_)'
-};
-
-function SSF_frac(x/*:number*/, D/*:number*/, mixed/*:?boolean*/)/*:Array<number>*/ {
+var table_fmt = {};
+init_table(table_fmt);
+function frac(x/*:number*/, D/*:number*/, mixed/*:?boolean*/)/*:Array<number>*/ {
 	var sgn = x < 0 ? -1 : 1;
 	var B = x * sgn;
 	var P_2 = 0, P_1 = 1, P = 0;
@ -173,7 +94,7 @@ function SSF_frac(x/*:number*/, D/*:number*/, mixed/*:?boolean*/)/*:Array<number
 	var q = Math.floor(sgn * P/Q);
 	return [q, sgn*P - q*Q, Q];
 }
-function SSF_parse_date_code(v/*:number*/,opts/*:?any*/,b2/*:?boolean*/) {
+function parse_date_code(v/*:number*/,opts/*:?any*/,b2/*:?boolean*/) {
 	if(v > 2958465 || v < 0) return null;
 	var date = (v|0), time = Math.floor(86400 * (v - date)), dow=0;
 	var dout=[];
@ -194,7 +115,7 @@ function SSF_parse_date_code(v/*:number*/,opts/*:?any*/,b2/*:?boolean*/) {
 		dout = [d.getFullYear(), d.getMonth()+1,d.getDate()];
 		dow = d.getDay();
 		if(date < 60) dow = (dow + 6) % 7;
-		if(b2) dow = SSF_fix_hijri(d, dout);
+		if(b2) dow = fix_hijri(d, dout);
 	}
 	out.y = dout[0]; out.m = dout[1]; out.d = dout[2];
 	out.S = time % 60; time = Math.floor(time / 60);
@ -203,86 +124,63 @@ function SSF_parse_date_code(v/*:number*/,opts/*:?any*/,b2/*:?boolean*/) {
 	out.q = dow;
 	return out;
 }
-var SSFbasedate = /*#__PURE__*/new Date(1899, 11, 31, 0, 0, 0);
-var SSFdnthresh = /*#__PURE__*/SSFbasedate.getTime();
-var SSFbase1904 = /*#__PURE__*/new Date(1900, 2, 1, 0, 0, 0);
+SSF.parse_date_code = parse_date_code;
+var basedate = new Date(1899, 11, 31, 0, 0, 0);
+var dnthresh = basedate.getTime();
+var base1904 = new Date(1900, 2, 1, 0, 0, 0);
 function datenum_local(v/*:Date*/, date1904/*:?boolean*/)/*:number*/ {
-	var epoch = /*#__PURE__*/v.getTime();
+	var epoch = v.getTime();
 	if(date1904) epoch -= 1461*24*60*60*1000;
-	else if(v >= SSFbase1904) epoch += 24*60*60*1000;
-	return (epoch - (SSFdnthresh + (/*#__PURE__*/v.getTimezoneOffset() - /*#__PURE__*/SSFbasedate.getTimezoneOffset()) * 60000)) / (24 * 60 * 60 * 1000);
+	else if(v >= base1904) epoch += 24*60*60*1000;
+	return (epoch - (dnthresh + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000)) / (24 * 60 * 60 * 1000);
 }
-/* ECMA-376 18.8.30 numFmt*/
-/* Note: `toPrecision` uses standard form when prec > E and E >= -6 */
-/* exponent >= -9 and <= 9 */
-function SSF_strip_decimal(o/*:string*/)/*:string*/ {
-	return (o.indexOf(".") == -1) ? o : o.replace(/(?:\.0*|(\.\d*[1-9])0+)$/, "$1");
-}
-
-/* General Exponential always shows 2 digits exp and trims the mantissa */
-function SSF_normalize_exp(o/*:string*/)/*:string*/ {
-	if(o.indexOf("E") == -1) return o;
-	return o.replace(/(?:\.0*|(\.\d*[1-9])0+)[Ee]/,"$1E").replace(/(E[+-])(\d)$/,"$10$2");
-}
-
-/* exponent >= -9 and <= 9 */
-function SSF_small_exp(v/*:number*/)/*:string*/ {
+function general_fmt_int(v/*:number*/)/*:string*/ { return v.toString(10); }
+SSF._general_int = general_fmt_int;
+var general_fmt_num = (function make_general_fmt_num() {
+var gnr1 = /\.(\d*[1-9])0+$/, gnr2 = /\.0*$/, gnr4 = /\.(\d*[1-9])0+/, gnr5 = /\.0*[Ee]/, gnr6 = /(E[+-])(\d)$/;
+function gfn2(v) {
 	var w = (v<0?12:11);
-	var o = SSF_strip_decimal(v.toFixed(12)); if(o.length <= w) return o;
+	var o = gfn5(v.toFixed(12)); if(o.length <= w) return o;
 	o = v.toPrecision(10); if(o.length <= w) return o;
 	return v.toExponential(5);
 }
-
-/* exponent >= 11 or <= -10 likely exponential */
-function SSF_large_exp(v/*:number*/)/*:string*/ {
-	var o = SSF_strip_decimal(v.toFixed(11));
-	return (o.length > (v<0?12:11) || o === "0" || o === "-0") ? v.toPrecision(6) : o;
+function gfn3(v) {
+	var o = v.toFixed(11).replace(gnr1,".$1");
+	if(o.length > (v<0?12:11)) o = v.toPrecision(6);
+	return o;
 }
-
-function SSF_general_num(v/*:number*/)/*:string*/ {
+function gfn4(o) {
+	for(var i = 0; i != o.length; ++i) if((o.charCodeAt(i) | 0x20) === 101) return o.replace(gnr4,".$1").replace(gnr5,"E").replace("e","E").replace(gnr6,"$10$2");
+	return o;
+}
+function gfn5(o) {
+	return o.indexOf(".") > -1 ? o.replace(gnr2,"").replace(gnr1,".$1") : o;
+}
+return function general_fmt_num(v/*:number*/)/*:string*/ {
 	var V = Math.floor(Math.log(Math.abs(v))*Math.LOG10E), o;
-
 	if(V >= -4 && V <= -1) o = v.toPrecision(10+V);
-	else if(Math.abs(V) <= 9) o = SSF_small_exp(v);
+	else if(Math.abs(V) <= 9) o = gfn2(v);
 	else if(V === 10) o = v.toFixed(10).substr(0,12);
-	else o = SSF_large_exp(v);
-
-	return SSF_strip_decimal(SSF_normalize_exp(o.toUpperCase()));
-}
-
-
-/*
-	"General" rules:
-	- text is passed through ("@")
-	- booleans are rendered as TRUE/FALSE
-	- "up to 11 characters" displayed for numbers
-	- Default date format (code 14) used for Dates
-
-	The longest 32-bit integer text is "-2147483648", exactly 11 chars
-	TODO: technically the display depends on the width of the cell
-*/
-function SSF_general(v/*:any*/, opts/*:any*/) {
+	else o = gfn3(v);
+	return gfn5(gfn4(o));
+};})();
+SSF._general_num = general_fmt_num;
+function general_fmt(v/*:any*/, opts/*:any*/) {
 	switch(typeof v) {
 		case 'string': return v;
 		case 'boolean': return v ? "TRUE" : "FALSE";
-		case 'number': return (v|0) === v ? v.toString(10) : SSF_general_num(v);
+		case 'number': return (v|0) === v ? general_fmt_int(v) : general_fmt_num(v);
 		case 'undefined': return "";
 		case 'object':
 			if(v == null) return "";
-			if(v instanceof Date) return SSF_format(14, datenum_local(v, opts && opts.date1904), opts);
+			if(v instanceof Date) return format(14, datenum_local(v, opts && opts.date1904), opts);
 	}
 	throw new Error("unsupported value in General format: " + v);
 }
-
-function SSF_fix_hijri(date/*:Date*/, o/*:[number, number, number]*/) {
-  /* TODO: properly adjust y/m/d and  */
-  o[0] -= 581;
-  var dow = date.getDay();
-  if(date < 60) dow = (dow + 6) % 7;
-  return dow;
-}
-//var THAI_DIGITS = "\u0E50\u0E51\u0E52\u0E53\u0E54\u0E55\u0E56\u0E57\u0E58\u0E59".split("");
-function SSF_write_date(type/*:number*/, fmt/*:string*/, val, ss0/*:?number*/)/*:string*/ {
+SSF._general = general_fmt;
+function fix_hijri(/*::date, o*/) { return 0; }
+/*jshint -W086 */
+function write_date(type/*:number*/, fmt/*:string*/, val, ss0/*:?number*/)/*:string*/ {
 	var o="", ss=0, tt=0, y = val.y, out, outl = 0;
 	switch(type) {
 		case 98: /* 'b' buddhist year */
@ -341,14 +239,10 @@ function SSF_write_date(type/*:number*/, fmt/*:string*/, val, ss0/*:?number*/)/*
 			default: throw 'bad abstime format: ' + fmt;
 		} outl = fmt.length === 3 ? 1 : 2; break;
 		case 101: /* 'e' era */
-			out = y; outl = 1; break;
+			out = y; outl = 1;
 	}
-	var outstr = outl > 0 ? pad0(out, outl) : "";
-	return outstr;
+	if(outl > 0) return pad0(out, outl); else return "";
 }
-
-
-/*jshint -W086 */
 /*jshint +W086 */
 function commaify(s/*:string*/)/*:string*/ {
 	var w = 3;
@ -357,18 +251,17 @@ function commaify(s/*:string*/)/*:string*/ {
 	for(; j!=s.length; j+=w) o+=(o.length > 0 ? "," : "") + s.substr(j,w);
 	return o;
 }
+var write_num/*:SSF_write_num*/ = (function make_write_num(){
 var pct1 = /%/g;
 function write_num_pct(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string*/{
 	var sfmt = fmt.replace(pct1,""), mul = fmt.length - sfmt.length;
 	return write_num(type, sfmt, val * Math.pow(10,2*mul)) + fill("%",mul);
 }
-
 function write_num_cm(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string*/{
 	var idx = fmt.length - 1;
 	while(fmt.charCodeAt(idx-1) === 44) --idx;
 	return write_num(type, fmt.substr(0,idx), val / Math.pow(10,3*(fmt.length-idx)));
 }
-
 function write_num_exp(fmt/*:string*/, val/*:number*/)/*:string*/{
 	var o/*:string*/;
 	var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
@ -417,11 +310,12 @@ function hashq(str/*:string*/)/*:string*/ {
 	}
 	return o;
 }
-function rnd(val/*:number*/, d/*:number*/)/*:string*/ { var dd = Math.pow(10,d); return ""+(Math.round(val * dd)/dd); }
+function rnd(val/*:number*/, d/*:number*/)/*:string*/ { return ""+(+(Math.round(val + "e+" + d)  + "e-" + d)); }
 function dec(val/*:number*/, d/*:number*/)/*:number*/ {
-	var _frac = val - Math.floor(val), dd = Math.pow(10,d);
-	if (d < ('' + Math.round(_frac * dd)).length) return 0;
-	return Math.round(_frac * dd);
+	if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
+		return 0;
+	}
+	return Math.round((val-Math.floor(val))*Math.pow(10,d));
 }
 function carry(val/*:number*/, d/*:number*/)/*:number*/ {
 	if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
@ -429,10 +323,7 @@ function carry(val/*:number*/, d/*:number*/)/*:number*/ {
 	}
 	return 0;
 }
-function flr(val/*:number*/)/*:string*/ {
-	if(val < 2147483647 && val > -2147483648) return ""+(val >= 0 ? (val|0) : (val-1|0));
-	return ""+Math.floor(val);
-}
+function flr(val/*:number*/)/*:string*/ { if(val < 2147483647 && val > -2147483648) return ""+(val >= 0 ? (val|0) : (val-1|0)); return ""+Math.floor(val); }
 function write_num_flt(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string*/ {
 	if(type.charCodeAt(0) === 40 && !fmt.match(closeparen)) {
 		var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
@ -477,7 +368,7 @@ function write_num_flt(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string
 	var oa = "";
 	if((r = fmt.match(/^([#0?]+)( ?)\/( ?)([#0?]+)/))) {
 		ri = Math.min(/*::String(*/r[4]/*::)*/.length,7);
-		ff = SSF_frac(aval, Math.pow(10,ri)-1, false);
+		ff = frac(aval, Math.pow(10,ri)-1, false);
 		o = "" + sign;
 		oa = write_num("n", /*::String(*/r[1]/*::)*/, ff[1]);
 		if(oa.charAt(oa.length-1) == " ") oa = oa.substr(0,oa.length-1) + "0";
@ -489,7 +380,7 @@ function write_num_flt(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string
 	}
 	if((r = fmt.match(/^# ([#0?]+)( ?)\/( ?)([#0?]+)/))) {
 		ri = Math.min(Math.max(r[1].length, r[4].length),7);
-		ff = SSF_frac(aval, Math.pow(10,ri)-1, true);
+		ff = frac(aval, Math.pow(10,ri)-1, true);
 		return sign + (ff[0]||(ff[1] ? "" : "0")) + " " + (ff[1] ? pad_(ff[1],ri) + r[2] + "/" + r[3] + rpad_(ff[2],ri): fill(" ", 2*ri+1 + r[2].length + r[3].length));
 	}
 	if((r = fmt.match(/^[#0?]+$/))) {
@ -597,7 +488,7 @@ function write_num_int(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string
 	var oa = "";
 	if((r = fmt.match(/^([#0?]+)( ?)\/( ?)([#0?]+)/))) {
 		ri = Math.min(/*::String(*/r[4]/*::)*/.length,7);
-		ff = SSF_frac(aval, Math.pow(10,ri)-1, false);
+		ff = frac(aval, Math.pow(10,ri)-1, false);
 		o = "" + sign;
 		oa = write_num("n", /*::String(*/r[1]/*::)*/, ff[1]);
 		if(oa.charAt(oa.length-1) == " ") oa = oa.substr(0,oa.length-1) + "0";
@ -609,7 +500,7 @@ function write_num_int(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string
 	}
 	if((r = fmt.match(/^# ([#0?]+)( ?)\/( ?)([#0?]+)/))) {
 		ri = Math.min(Math.max(r[1].length, r[4].length),7);
-		ff = SSF_frac(aval, Math.pow(10,ri)-1, true);
+		ff = frac(aval, Math.pow(10,ri)-1, true);
 		return sign + (ff[0]||(ff[1] ? "" : "0")) + " " + (ff[1] ? pad_(ff[1],ri) + r[2] + "/" + r[3] + rpad_(ff[2],ri): fill(" ", 2*ri+1 + r[2].length + r[3].length));
 	}
 	if((r = fmt.match(/^[#0?]+$/))) {
@ -635,10 +526,10 @@ function write_num_int(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string
 	}
 	throw new Error("unsupported format |" + fmt + "|");
 }
-function write_num(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string*/ {
+return function write_num(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string*/ {
 	return (val|0) === val ? write_num_int(type, fmt, val) : write_num_flt(type, fmt, val);
-}
-function SSF_split_fmt(fmt/*:string*/)/*:Array<string>*/ {
+};})();
+function split_fmt(fmt/*:string*/)/*:Array<string>*/ {
 	var out/*:Array<string>*/ = [];
 	var in_str = false/*, cc*/;
 	for(var i = 0, j = 0; i < fmt.length; ++i) switch((/*cc=*/fmt.charCodeAt(i))) {
@ -654,14 +545,14 @@ function SSF_split_fmt(fmt/*:string*/)/*:Array<string>*/ {
 	if(in_str === true) throw new Error("Format |" + fmt + "| unterminated string ");
 	return out;
 }
-
-var SSF_abstime = /\[[HhMmSs\u0E0A\u0E19\u0E17]*\]/;
+SSF._split = split_fmt;
+var abstime = /\[[HhMmSs]*\]/;
 function fmt_is_date(fmt/*:string*/)/*:boolean*/ {
 	var i = 0, /*cc = 0,*/ c = "", o = "";
 	while(i < fmt.length) {
 		switch((c = fmt.charAt(i))) {
-			case 'G': if(SSF_isgeneral(fmt, i)) i+= 6; i++; break;
-			case '"': for(;(/*cc=*/fmt.charCodeAt(++i)) !== 34 && i < fmt.length;){/*empty*/} ++i; break;
+			case 'G': if(isgeneral(fmt, i)) i+= 6; i++; break;
+			case '"': for(;(/*cc=*/fmt.charCodeAt(++i)) !== 34 && i < fmt.length;) ++i; ++i; break;
 			case '\\': i+=2; break;
 			case '_': i+=2; break;
 			case '@': ++i; break;
@ -671,15 +562,14 @@ function fmt_is_date(fmt/*:string*/)/*:boolean*/ {
 			case 'M': case 'D': case 'Y': case 'H': case 'S': case 'E':
 				/* falls through */
 			case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g': return true;
-			case 'A': case 'a': case '上':
+			case 'A': case 'a':
 				if(fmt.substr(i, 3).toUpperCase() === "A/P") return true;
 				if(fmt.substr(i, 5).toUpperCase() === "AM/PM") return true;
-				if(fmt.substr(i, 5).toUpperCase() === "上午/下午") return true;
 				++i; break;
 			case '[':
 				o = c;
 				while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
-				if(o.match(SSF_abstime)) return true;
+				if(o.match(abstime)) return true;
 				break;
 			case '.':
 				/* falls through */
@ -697,7 +587,7 @@ function fmt_is_date(fmt/*:string*/)/*:boolean*/ {
 	}
 	return false;
 }
-
+SSF.is_date = fmt_is_date;
 function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 	var out = [], o = "", i = 0, c = "", lst='t', dt, j, cc;
 	var hr='H';
@ -705,7 +595,7 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 	while(i < fmt.length) {
 		switch((c = fmt.charAt(i))) {
 			case 'G': /* General */
-				if(!SSF_isgeneral(fmt, i)) throw new Error('unrecognized character ' + c + ' in ' +fmt);
+				if(!isgeneral(fmt, i)) throw new Error('unrecognized character ' + c + ' in ' +fmt);
 				out[out.length] = {t:'G', v:'General'}; i+=7; break;
 			case '"': /* Literal text */
 				for(o="";(cc=fmt.charCodeAt(++i)) !== 34 && i < fmt.length;) o += String.fromCharCode(cc);
@ -717,7 +607,7 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 				out[out.length] = {t:'T', v:v}; ++i; break;
 			case 'B': case 'b':
 				if(fmt.charAt(i+1) === "1" || fmt.charAt(i+1) === "2") {
-					if(dt==null) { dt=SSF_parse_date_code(v, opts, fmt.charAt(i+1) === "2"); if(dt==null) return ""; }
+					if(dt==null) { dt=parse_date_code(v, opts, fmt.charAt(i+1) === "2"); if(dt==null) return ""; }
 					out[out.length] = {t:'X', v:fmt.substr(i,2)}; lst = c; i+=2; break;
 				}
 				/* falls through */
@ -726,17 +616,16 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 				/* falls through */
 			case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g':
 				if(v < 0) return "";
-				if(dt==null) { dt=SSF_parse_date_code(v, opts); if(dt==null) return ""; }
+				if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
 				o = c; while(++i < fmt.length && fmt.charAt(i).toLowerCase() === c) o+=c;
 				if(c === 'm' && lst.toLowerCase() === 'h') c = 'M';
 				if(c === 'h') c = hr;
 				out[out.length] = {t:c, v:o}; lst = c; break;
-			case 'A': case 'a': case '上':
+			case 'A': case 'a':
 				var q={t:c, v:c};
-				if(dt==null) dt=SSF_parse_date_code(v, opts);
-				if(fmt.substr(i, 3).toUpperCase() === "A/P") { if(dt!=null) q.v = dt.H >= 12 ? fmt.charAt(i+2) : c; q.t = 'T'; hr='h';i+=3;}
+				if(dt==null) dt=parse_date_code(v, opts);
+				if(fmt.substr(i, 3).toUpperCase() === "A/P") { if(dt!=null) q.v = dt.H >= 12 ? "P" : "A"; q.t = 'T'; hr='h';i+=3;}
 				else if(fmt.substr(i,5).toUpperCase() === "AM/PM") { if(dt!=null) q.v = dt.H >= 12 ? "PM" : "AM"; q.t = 'T'; i+=5; hr='h'; }
-				else if(fmt.substr(i,5).toUpperCase() === "上午/下午") { if(dt!=null) q.v = dt.H >= 12 ? "下午" : "上午"; q.t = 'T'; i+=5; hr='h'; }
 				else { q.t = "t"; ++i; }
 				if(dt==null && q.t === 'T') return "";
 				out[out.length] = q; lst = c; break;
@ -744,8 +633,8 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 				o = c;
 				while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
 				if(o.slice(-1) !== ']') throw 'unterminated "[" block: |' + o + '|';
-				if(o.match(SSF_abstime)) {
-					if(dt==null) { dt=SSF_parse_date_code(v, opts); if(dt==null) return ""; }
+				if(o.match(abstime)) {
+					if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
 					out[out.length] = {t:'Z', v:o.toLowerCase()};
 					lst = o.charAt(1);
 				} else if(o.indexOf("$") > -1) {
@ -761,7 +650,7 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 				}
 				/* falls through */
 			case '0': case '#':
-				o = c; while(++i < fmt.length && "0#?.,E+-%".indexOf(c=fmt.charAt(i)) > -1) o += c;
+				o = c; while((++i < fmt.length && "0#?.,E+-%".indexOf(c=fmt.charAt(i)) > -1) || (c=='\\' && fmt.charAt(i+1) == "-" && i < fmt.length - 2 && "0#".indexOf(fmt.charAt(i+2))>-1)) o += c;
 				out[out.length] = {t:'n', v:o}; break;
 			case '?':
 				o = c; while(fmt.charAt(++i) === c) o+=c;
@ -772,14 +661,11 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 				o = c; while(i < fmt.length && "0123456789".indexOf(fmt.charAt(++i)) > -1) o+=fmt.charAt(i);
 				out[out.length] = {t:'D', v:o}; break;
 			case ' ': out[out.length] = {t:c, v:c}; ++i; break;
-			case '$': out[out.length] = {t:'t', v:'$'}; ++i; break;
 			default:
 				if(",$-+/():!^&'~{}<>=€acfijklopqrtuvwxzP".indexOf(c) === -1) throw new Error('unrecognized character ' + c + ' in ' + fmt);
 				out[out.length] = {t:'t', v:c}; ++i; break;
 		}
 	}
-
-	/* Scan for date/time parts */
 	var bt = 0, ss0 = 0, ssm;
 	for(i=out.length-1, lst='t'; i >= 0; --i) {
 		switch(out[i].t) {
@ -798,7 +684,6 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 				if(bt < 3 && out[i].v.match(/[Ss]/)) bt = 3;
 		}
 	}
-	/* time rounding depends on presence of minute / second / usec fields */
 	switch(bt) {
 		case 0: break;
 		case 1:
@ -813,7 +698,6 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 			if(dt.S >=  60) { dt.S = 0; ++dt.M; }
 			break;
 	}
-
 	/* replace fields */
 	var nstr = "", jj;
 	for(i=0; i < out.length; ++i) {
@ -822,9 +706,9 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 			case 'X': out[i].v = ""; out[i].t = ";"; break;
 			case 'd': case 'm': case 'y': case 'h': case 'H': case 'M': case 's': case 'e': case 'b': case 'Z':
 				/*::if(!dt) throw "unreachable"; */
-				out[i].v = SSF_write_date(out[i].t.charCodeAt(0), out[i].v, dt, ss0);
+				out[i].v = write_date(out[i].t.charCodeAt(0), out[i].v, dt, ss0);
 				out[i].t = 't'; break;
-			case 'n': case '?':
+			case 'n': case '(': case '?':
 				jj = i+1;
 				while(out[jj] != null && (
 					(c=out[jj].t) === "?" || c === "D" ||
@ -837,14 +721,14 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 				}
 				nstr += out[i].v;
 				i = jj-1; break;
-			case 'G': out[i].t = 't'; out[i].v = SSF_general(v,opts); break;
+			case 'G': out[i].t = 't'; out[i].v = general_fmt(v,opts); break;
 		}
 	}
 	var vv = "", myv, ostr;
 	if(nstr.length > 0) {
 		if(nstr.charCodeAt(0) == 40) /* '(' */ {
 			myv = (v<0&&nstr.charCodeAt(0) === 45 ? -v : v);
-			ostr = write_num('n', nstr, myv);
+			ostr = write_num('(', nstr, myv);
 		} else {
 			myv = (v<0 && flen > 1 ? -v : v);
 			ostr = write_num('n', nstr, myv);
@ -859,7 +743,7 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 		var lasti=out.length;
 		if(decpt === out.length && ostr.indexOf("E") === -1) {
 			for(i=out.length-1; i>= 0;--i) {
-				if(out[i] == null || 'n?'.indexOf(out[i].t) === -1) continue;
+				if(out[i] == null || 'n?('.indexOf(out[i].t) === -1) continue;
 				if(jj>=out[i].v.length-1) { jj -= out[i].v.length; out[i].v = ostr.substr(jj+1, out[i].v.length); }
 				else if(jj < 0) out[i].v = "";
 				else { out[i].v = ostr.substr(0, jj+1); jj = -1; }
@ -871,7 +755,7 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 		else if(decpt !== out.length && ostr.indexOf("E") === -1) {
 			jj = ostr.indexOf(".")-1;
 			for(i=decpt; i>= 0; --i) {
-				if(out[i] == null || 'n?'.indexOf(out[i].t) === -1) continue;
+				if(out[i] == null || 'n?('.indexOf(out[i].t) === -1) continue;
 				j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")-1:out[i].v.length-1;
 				vv = out[i].v.substr(j+1);
 				for(; j>=0; --j) {
@ -896,7 +780,7 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 			}
 		}
 	}
-	for(i=0; i<out.length; ++i) if(out[i] != null && 'n?'.indexOf(out[i].t)>-1) {
+	for(i=0; i<out.length; ++i) if(out[i] != null && 'n(?'.indexOf(out[i].t)>-1) {
 		myv = (flen >1 && v < 0 && i>0 && out[i-1].v === "-" ? -v:v);
 		out[i].v = write_num(out[i].t, out[i].v, myv);
 		out[i].t = 't';
@ -905,7 +789,8 @@ function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
 	for(i=0; i !== out.length; ++i) if(out[i] != null) retval += out[i].v;
 	return retval;
 }
-
+SSF._eval = eval_fmt;
+var cfregex = /\[[=<>]/;
 var cfregex2 = /\[(=|>[=]?|<[>=]?)(-?\d+(?:\.\d*)?)\]/;
 function chkcond(v, rr) {
 	if(rr == null) return false;
@ -921,7 +806,7 @@ function chkcond(v, rr) {
 	return false;
 }
 function choose_fmt(f/*:string*/, v/*:any*/) {
-	var fmt = SSF_split_fmt(f);
+	var fmt = split_fmt(f);
 	var l = fmt.length, lat = fmt[l-1].indexOf("@");
 	if(l<4 && lat>-1) --l;
 	if(fmt.length > 4) throw new Error("cannot find right format for |" + fmt.join("|") + "|");
@ -934,14 +819,14 @@ function choose_fmt(f/*:string*/, v/*:any*/) {
 	}
 	var ff = v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2];
 	if(fmt[0].indexOf("[") === -1 && fmt[1].indexOf("[") === -1) return [l, ff];
-	if(fmt[0].match(/\[[=<>]/) != null || fmt[1].match(/\[[=<>]/) != null) {
+	if(fmt[0].match(cfregex) != null || fmt[1].match(cfregex) != null) {
 		var m1 = fmt[0].match(cfregex2);
 		var m2 = fmt[1].match(cfregex2);
 		return chkcond(v, m1) ? [l, fmt[0]] : chkcond(v, m2) ? [l, fmt[1]] : [l, fmt[m1 != null && m2 != null ? 2 : 1]];
 	}
 	return [l, ff];
 }
-function SSF_format(fmt/*:string|number*/,v/*:any*/,o/*:?any*/) {
+function format(fmt/*:string|number*/,v/*:any*/,o/*:?any*/) {
 	if(o == null) o = {};
 	var sfmt = "";
 	switch(typeof fmt) {
@ -952,19 +837,17 @@ function SSF_format(fmt/*:string|number*/,v/*:any*/,o/*:?any*/) {
 		case "number":
 			if(fmt == 14 && o.dateNF) sfmt = o.dateNF;
 			else sfmt = (o.table != null ? (o.table/*:any*/) : table_fmt)[fmt];
-			if(sfmt == null) sfmt = (o.table && o.table[SSF_default_map[fmt]]) || table_fmt[SSF_default_map[fmt]];
-			if(sfmt == null) sfmt = SSF_default_str[fmt] || "General";
 			break;
 	}
-	if(SSF_isgeneral(sfmt,0)) return SSF_general(v, o);
+	if(isgeneral(sfmt,0)) return general_fmt(v, o);
 	if(v instanceof Date) v = datenum_local(v, o.date1904);
 	var f = choose_fmt(sfmt, v);
-	if(SSF_isgeneral(f[1])) return SSF_general(v, o);
+	if(isgeneral(f[1])) return general_fmt(v, o);
 	if(v === true) v = "TRUE"; else if(v === false) v = "FALSE";
 	else if(v === "" || v == null) return "";
 	return eval_fmt(f[1], v, o, f[0]);
 }
-function SSF_load(fmt/*:string*/, idx/*:?number*/)/*:number*/ {
+function load_entry(fmt/*:string*/, idx/*:?number*/)/*:number*/ {
 	if(typeof idx != 'number') {
 		idx = +idx || -1;
 /*::if(typeof idx != 'number') return 0x188; */
@ -980,22 +863,14 @@ function SSF_load(fmt/*:string*/, idx/*:?number*/)/*:number*/ {
 	table_fmt[idx] = fmt;
 	return idx;
 }
-function SSF_load_table(tbl/*:SSFTable*/)/*:void*/ {
+SSF.load = load_entry;
+SSF._table = table_fmt;
+SSF.get_table = function get_table()/*:SSFTable*/ { return table_fmt; };
+SSF.load_table = function load_table(tbl/*:SSFTable*/)/*:void*/ {
 	for(var i=0; i!=0x0188; ++i)
-		if(tbl[i] !== undefined) SSF_load(tbl[i], i);
-}
-
-function make_ssf() {
-	table_fmt = SSF_init_table();
-}
-
-var SSF = {
-	format: SSF_format,
-	load: SSF_load,
-	_table: table_fmt,
-	load_table: SSF_load_table,
-	parse_date_code: SSF_parse_date_code,
-	is_date: fmt_is_date,
-	get_table: function get_table() { return SSF._table = table_fmt; }
+		if(tbl[i] !== undefined) load_entry(tbl[i], i);
 };
-
+SSF.init_table = init_table;
+SSF.format = format;
+};
+make_ssf(SSF);
--- a/bits/11_ssfutils.js
+++ b/bits/11_ssfutils.js
@ -1,3 +1,23 @@
+/* map from xlml named formats to SSF TODO: localize */
+var XLMLFormatMap/*{[string]:string}*/ = ({
+	"General Number": "General",
+	"General Date": SSF._table[22],
+	"Long Date": "dddd, mmmm dd, yyyy",
+	"Medium Date": SSF._table[15],
+	"Short Date": SSF._table[14],
+	"Long Time": SSF._table[19],
+	"Medium Time": SSF._table[18],
+	"Short Time": SSF._table[20],
+	"Currency": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
+	"Fixed": SSF._table[2],
+	"Standard": SSF._table[4],
+	"Percent": SSF._table[10],
+	"Scientific": SSF._table[11],
+	"Yes/No": '"Yes";"Yes";"No";@',
+	"True/False": '"True";"True";"False";@',
+	"On/Off": '"Yes";"Yes";"No";@'
+}/*:any*/);
+
 var SSFImplicit/*{[number]:string}*/ = ({
 	"5": '"$"#,##0_);\\("$"#,##0\\)',
 	"6": '"$"#,##0_);[Red]\\("$"#,##0\\)',
@ -41,7 +61,7 @@ var SSFImplicit/*{[number]:string}*/ = ({
 /* dateNF parse TODO: move to SSF */
 var dateNFregex = /[dD]+|[mM]+|[yYeE]+|[Hh]+|[Ss]+/g;
 function dateNF_regex(dateNF/*:string|number*/)/*:RegExp*/ {
-	var fmt = typeof dateNF == "number" ? table_fmt[dateNF] : dateNF;
+	var fmt = typeof dateNF == "number" ? SSF._table[dateNF] : dateNF;
 	fmt = fmt.replace(dateNFregex, "(\\d+)");
 	return new RegExp("^" + fmt + "$");
 }
@ -65,12 +85,3 @@ function dateNF_fix(str/*:string*/, dateNF/*:string*/, match/*:Array<string>*/)/
 	return datestr + "T" + timestr;
 }

-/* table of bad formats written by third-party tools */
-var bad_formats = {
-	"d.m": "d\\.m" // Issue #2571 Google Sheets writes invalid format 'd.m', correct format is 'd"."m' or 'd\\.m'
-};
-
-function SSF__load(fmt, idx) {
-	return SSF_load(bad_formats[fmt] || fmt, idx);
-}
-
--- a/bits/18_cfb.js
+++ b/bits/18_cfb.js
--- a/bits/19_fsutils.js
+++ b/bits/19_fsutils.js
@ -1,5 +1,5 @@
 var _fs;
-function set_fs(fs) { _fs = fs; }
+if(typeof require !== 'undefined') try { _fs = require('fs'); } catch(e) {}

 /* normalize data for blob ctor */
 function blobify(data) {
@ -9,18 +9,8 @@ function blobify(data) {
 }
 /* write or download file */
 function write_dl(fname/*:string*/, payload/*:any*/, enc/*:?string*/) {
-	/*global IE_SaveFile, Blob, navigator, saveAs, document, File, chrome */
+	/*global IE_SaveFile, Blob, navigator, saveAs, URL, document, File, chrome */
 	if(typeof _fs !== 'undefined' && _fs.writeFileSync) return enc ? _fs.writeFileSync(fname, payload, enc) : _fs.writeFileSync(fname, payload);
-	if(typeof Deno !== 'undefined') {
-		/* in this spot, it's safe to assume typed arrays and TextEncoder/TextDecoder exist */
-		if(enc && typeof payload == "string") switch(enc) {
-			case "utf8": payload = new TextEncoder(enc).encode(payload); break;
-			case "binary": payload = s2ab(payload); break;
-			/* TODO: binary equivalent */
-			default: throw new Error("Unsupported encoding " + enc);
-		}
-		return Deno.writeFileSync(fname, payload);
-	}
 	var data = (enc == "utf8") ? utf8write(payload) : payload;
 	/*:: declare var IE_SaveFile: any; */
 	if(typeof IE_SaveFile !== 'undefined') return IE_SaveFile(data, fname);
@ -60,7 +50,6 @@ function write_dl(fname/*:string*/, payload/*:any*/, enc/*:?string*/) {
 /* read binary data from file */
 function read_binary(path/*:string*/) {
 	if(typeof _fs !== 'undefined') return _fs.readFileSync(path);
-	if(typeof Deno !== 'undefined') return Deno.readFileSync(path);
 	// $FlowIgnore
 	if(typeof $ !== 'undefined' && typeof File !== 'undefined' && typeof Folder !== 'undefined') try { // extendscript
 		// $FlowIgnore
--- a/bits/20_jsutils.js
+++ b/bits/20_jsutils.js
@ -1,6 +1,6 @@
 function keys(o/*:any*/)/*:Array<any>*/ {
 	var ks = Object.keys(o), o2 = [];
-	for(var i = 0; i < ks.length; ++i) if(Object.prototype.hasOwnProperty.call(o, ks[i])) o2.push(ks[i]);
+	for(var i = 0; i < ks.length; ++i) if(o.hasOwnProperty(ks[i])) o2.push(ks[i]);
 	return o2;
 }

@ -31,22 +31,16 @@ function evert_arr(obj/*:any*/)/*:EvertArrType*/ {
 	return o;
 }

-var basedate = /*#__PURE__*/new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
+var basedate = new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
+var dnthresh = basedate.getTime() + (new Date().getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
 function datenum(v/*:Date*/, date1904/*:?boolean*/)/*:number*/ {
-	var epoch = /*#__PURE__*/v.getTime();
+	var epoch = v.getTime();
 	if(date1904) epoch -= 1462*24*60*60*1000;
-	var dnthresh = /*#__PURE__*/basedate.getTime() + (/*#__PURE__*/v.getTimezoneOffset() - /*#__PURE__*/basedate.getTimezoneOffset()) * 60000;
 	return (epoch - dnthresh) / (24 * 60 * 60 * 1000);
 }
-var refdate = /*#__PURE__*/new Date();
-var dnthresh = /*#__PURE__*/basedate.getTime() + (/*#__PURE__*/refdate.getTimezoneOffset() - /*#__PURE__*/basedate.getTimezoneOffset()) * 60000;
-var refoffset = /*#__PURE__*/refdate.getTimezoneOffset();
 function numdate(v/*:number*/)/*:Date*/ {
 	var out = new Date();
 	out.setTime(v * 24 * 60 * 60 * 1000 + dnthresh);
-	if (out.getTimezoneOffset() !== refoffset) {
-		out.setTime(out.getTime() + (out.getTimezoneOffset() - refoffset) * 60000);
-	}
 	return out;
 }

@ -77,9 +71,9 @@ function parse_isodur(s) {
 	return sec;
 }

-var good_pd_date_1 = /*#__PURE__*/new Date('2017-02-19T19:06:09.000Z');
-var good_pd_date = /*#__PURE__*/isNaN(/*#__PURE__*/good_pd_date_1.getFullYear()) ? /*#__PURE__*/new Date('2/19/17') : good_pd_date_1;
-var good_pd = /*#__PURE__*/good_pd_date.getFullYear() == 2017;
+var good_pd_date = new Date('2017-02-19T19:06:09.000Z');
+if(isNaN(good_pd_date.getFullYear())) good_pd_date = new Date('2/19/17');
+var good_pd = good_pd_date.getFullYear() == 2017;
 /* parses a date as a local date */
 function parseDate(str/*:string|Date*/, fixdate/*:?number*/)/*:Date*/ {
 	var d = new Date(str);
@ -101,37 +95,10 @@ function parseDate(str/*:string|Date*/, fixdate/*:?number*/)/*:Date*/ {
 	return out;
 }

-function cc2str(arr/*:Array<number>*/, debomit)/*:string*/ {
-	if(has_buf && Buffer.isBuffer(arr)) {
-		if(debomit && buf_utf16le) {
-			// TODO: temporary patch
-			if(arr[0] == 0xFF && arr[1] == 0xFE) return utf8write(arr.slice(2).toString("utf16le"));
-			if(arr[1] == 0xFE && arr[2] == 0xFF) return utf8write(utf16beread(arr.slice(2).toString("binary")));
-		}
-		return arr.toString("binary");
-	}
-
-	if(typeof TextDecoder !== "undefined") try {
-		if(debomit) {
-			if(arr[0] == 0xFF && arr[1] == 0xFE) return utf8write(new TextDecoder("utf-16le").decode(arr.slice(2)));
-			if(arr[0] == 0xFE && arr[1] == 0xFF) return utf8write(new TextDecoder("utf-16be").decode(arr.slice(2)));
-		}
-		var rev = {
-			"\u20ac": "\x80", "\u201a": "\x82", "\u0192": "\x83", "\u201e": "\x84",
-			"\u2026": "\x85", "\u2020": "\x86", "\u2021": "\x87", "\u02c6": "\x88",
-			"\u2030": "\x89", "\u0160": "\x8a", "\u2039": "\x8b", "\u0152": "\x8c",
-			"\u017d": "\x8e", "\u2018": "\x91", "\u2019": "\x92", "\u201c": "\x93",
-			"\u201d": "\x94", "\u2022": "\x95", "\u2013": "\x96", "\u2014": "\x97",
-			"\u02dc": "\x98", "\u2122": "\x99", "\u0161": "\x9a", "\u203a": "\x9b",
-			"\u0153": "\x9c", "\u017e": "\x9e", "\u0178": "\x9f"
-		};
-		if(Array.isArray(arr)) arr = new Uint8Array(arr);
-		return new TextDecoder("latin1").decode(arr).replace(/[€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ]/g, function(c) { return rev[c] || c; });
-	} catch(e) {}
-
-	var o = [];
-	for(var i = 0; i != arr.length; ++i) o.push(String.fromCharCode(arr[i]));
-	return o.join("");
+function cc2str(arr/*:Array<number>*/)/*:string*/ {
+	var o = "";
+	for(var i = 0; i != arr.length; ++i) o += String.fromCharCode(arr[i]);
+	return o;
 }

 function dup(o/*:any*/)/*:any*/ {
@ -139,7 +106,7 @@ function dup(o/*:any*/)/*:any*/ {
 	if(typeof o != 'object' || o == null) return o;
 	if(o instanceof Date) return new Date(o.getTime());
 	var out = {};
-	for(var k in o) if(Object.prototype.hasOwnProperty.call(o, k)) out[k] = dup(o[k]);
+	for(var k in o) if(o.hasOwnProperty(k)) out[k] = dup(o[k]);
 	return out;
 }

@ -148,8 +115,7 @@ function fill(c/*:string*/,l/*:number*/)/*:string*/ { var o = ""; while(o.length
 /* TODO: stress test */
 function fuzzynum(s/*:string*/)/*:number*/ {
 	var v/*:number*/ = Number(s);
-	if(!isNaN(v)) return isFinite(v) ? v : NaN;
-	if(!/\d/.test(s)) return v;
+	if(!isNaN(v)) return v;
 	var wt = 1;
 	var ss = s.replace(/([\d]),([\d])/g,"$1$2").replace(/[$]/g,"").replace(/[%]/g, function() { wt *= 100; return "";});
 	if(!isNaN(v = Number(ss))) return v / wt;
@ -157,44 +123,21 @@ function fuzzynum(s/*:string*/)/*:number*/ {
 	if(!isNaN(v = Number(ss))) return v / wt;
 	return v;
 }
-
-/* NOTE: Chrome rejects bare times like 1:23 PM */
-var FDRE1 = /^(0?\d|1[0-2])(?:|:([0-5]?\d)(?:|(\.\d+)(?:|:([0-5]?\d))|:([0-5]?\d)(|\.\d+)))\s+([ap])m?$/;
-
-function fuzzytime1(M) /*:Date*/ {
-    /* TODO: 1904 adjustment, keep in sync with base date */
-    if(!M[2]) return new Date(1899,11,30,(+M[1]%12) + (M[7] == "p" ? 12 : 0), 0, 0, 0);
-    if(M[3]) {
-        if(M[4]) return new Date(1899,11,30,(+M[1]%12) + (M[7] == "p" ? 12 : 0), +M[2], +M[4], parseFloat(M[3])*1000);
-        else return new Date(1899,11,30,(M[7] == "p" ? 12 : 0), +M[1], +M[2], parseFloat(M[3])*1000);
-    }
-    else if(M[5]) return new Date(1899,11,30, (+M[1]%12) + (M[7] == "p" ? 12 : 0), +M[2], +M[5], M[6] ? parseFloat(M[6]) * 1000 : 0);
-    else return new Date(1899,11,30,(+M[1]%12) + (M[7] == "p" ? 12 : 0), +M[2], 0, 0);
-}
-var lower_months = ['january', 'february', 'march', 'april', 'may', 'june', 'july', 'august', 'september', 'october', 'november', 'december'];
 function fuzzydate(s/*:string*/)/*:Date*/ {
-	var lower = s.toLowerCase();
-	var lnos = lower.replace(/\s+/g, " ").trim();
-	var M = lnos.match(FDRE1);
-	if(M) return fuzzytime1(M);
-
 	var o = new Date(s), n = new Date(NaN);
 	var y = o.getYear(), m = o.getMonth(), d = o.getDate();
 	if(isNaN(d)) return n;
-	if(lower.match(/jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec/)) {
-		lower = lower.replace(/[^a-z]/g,"").replace(/([^a-z]|^)[ap]m?([^a-z]|$)/,"");
-		if(lower.length > 3 && lower_months.indexOf(lower) == -1) return n;
-	} else if(lower.replace(/[ap]m?/, "").match(/[a-z]/)) return n;
-	if(y < 0 || y > 8099 || s.match(/[^-0-9:,\/\\]/)) return n;
+	if(y < 0 || y > 8099) return n;
+	if((m > 0 || d > 1) && y != 101) return o;
+	if(s.toLowerCase().match(/jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec/)) return o;
+	if(s.match(/[^-0-9:,\/\\]/)) return n;
 	return o;
 }

-var split_regex = /*#__PURE__*/(function() {
-	var safe_split_regex = "abacaba".split(/(:?b)/i).length == 5;
-	return function split_regex(str/*:string*/, re, def/*:string*/)/*:Array<string>*/ {
-		if(safe_split_regex || typeof re == "string") return str.split(re);
-		var p = str.split(re), o = [p[0]];
-		for(var i = 1; i < p.length; ++i) { o.push(def); o.push(p[i]); }
-		return o;
-	};
-})();
+var safe_split_regex = "abacaba".split(/(:?b)/i).length == 5;
+function split_regex(str/*:string*/, re, def/*:string*/)/*:Array<string>*/ {
+	if(safe_split_regex || typeof re == "string") return str.split(re);
+	var p = str.split(re), o = [p[0]];
+	for(var i = 1; i < p.length; ++i) { o.push(def); o.push(p[i]); }
+	return o;
+}
--- a/bits/21_ziputils.js
+++ b/bits/21_ziputils.js
@ -1,6 +1,5 @@
 function getdatastr(data)/*:?string*/ {
 	if(!data) return null;
-	if(data.content && data.type) return cc2str(data.content, true);
 	if(data.data) return debom(data.data);
 	if(data.asNodeBuffer && has_buf) return debom(data.asNodeBuffer().toString('binary'));
 	if(data.asBinary) return debom(data.asBinary());
@ -17,7 +16,6 @@ function getdatabin(data) {
 		if(typeof o == "string") return char_codes(o);
 		return Array.prototype.slice.call(o);
 	}
-	if(data.content && data.type) return data.content;
 	return null;
 }

@ -26,11 +24,11 @@ function getdata(data) { return (data && data.name.slice(-4) === ".bin") ? getda
 /* Part 2 Section 10.1.2 "Mapping Content Types" Names are case-insensitive */
 /* OASIS does not comment on filename case sensitivity */
 function safegetzipfile(zip, file/*:string*/) {
-	var k = zip.FullPaths || keys(zip.files);
-	var f = file.toLowerCase().replace(/[\/]/g, '\\'), g = f.replace(/\\/g,'\/');
+	var k = keys(zip.files);
+	var f = file.toLowerCase(), g = f.replace(/\//g,'\\');
 	for(var i=0; i<k.length; ++i) {
-		var n = k[i].replace(/^Root Entry[\/]/,"").toLowerCase();
-		if(f == n || g == n) return zip.files ? zip.files[k[i]] : zip.FileIndex[i];
+		var n = k[i].toLowerCase();
+		if(f == n || g == n) return zip.files[k[i]];
 	}
 	return null;
 }
@ -53,46 +51,23 @@ function getzipstr(zip, file/*:string*/, safe/*:?boolean*/)/*:?string*/ {
 	try { return getzipstr(zip, file); } catch(e) { return null; }
 }

-function getzipbin(zip, file/*:string*/, safe/*:?boolean*/)/*:any*/ {
-	if(!safe) return getdatabin(getzipfile(zip, file));
-	if(!file) return null;
-	try { return getzipbin(zip, file); } catch(e) { return null; }
-}
-
 function zipentries(zip) {
-	var k = zip.FullPaths || keys(zip.files), o = [];
-	for(var i = 0; i < k.length; ++i) if(k[i].slice(-1) != '/') o.push(k[i].replace(/^Root Entry[\/]/, ""));
+	var k = keys(zip.files), o = [];
+	for(var i = 0; i < k.length; ++i) if(k[i].slice(-1) != '/') o.push(k[i]);
 	return o.sort();
 }

-function zip_add_file(zip, path, content) {
-	if(zip.FullPaths) {
-		if(typeof content == "string") {
-			var res;
-			if(has_buf) res = Buffer_from(content);
-			/* TODO: investigate performance in Edge 13 */
-			//else if(typeof TextEncoder !== "undefined") res = new TextEncoder().encode(content);
-			else res = utf8decode(content);
-			return CFB.utils.cfb_add(zip, path, res);
-		}
-		CFB.utils.cfb_add(zip, path, content);
+var jszip;
+/*:: declare var JSZipSync:any; */
+/*global JSZipSync:true */
+if(typeof JSZipSync !== 'undefined') jszip = JSZipSync;
+if(typeof exports !== 'undefined') {
+	if(typeof module !== 'undefined' && module.exports) {
+		if(typeof jszip === 'undefined') jszip = require('./jszip.js');
 	}
-	else zip.file(path, content);
-}
-
-function zip_new() { return CFB.utils.cfb_new(); }
-
-function zip_read(d, o) {
-	switch(o.type) {
-		case "base64": return CFB.read(d, { type: "base64" });
-		case "binary": return CFB.read(d, { type: "binary" });
-		case "buffer": case "array": return CFB.read(d, { type: "buffer" });
-	}
-	throw new Error("Unrecognized type " + o.type);
 }

 function resolve_path(path/*:string*/, base/*:string*/)/*:string*/ {
-	if(path.charAt(0) == "/") return path.slice(1);
 	var result = base.split('/');
 	if(base.slice(-1) != "/") result.pop(); // folder path
 	var target = path.split('/');
--- a/bits/22_xmlutils.js
+++ b/bits/22_xmlutils.js
@ -1,9 +1,9 @@
 var XML_HEADER = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>\r\n';
 var attregexg=/([^"\s?>\/]+)\s*=\s*((?:")([^"]*)(?:")|(?:')([^']*)(?:')|([^'">\s]+))/g;
-var tagregex1=/<[\/\?]?[a-zA-Z0-9:_-]+(?:\s+[^"\s?>\/]+\s*=\s*(?:"[^"]*"|'[^']*'|[^'">\s=]+))*\s*[\/\?]?>/mg, tagregex2 = /<[^>]*>/g;
-var tagregex = /*#__PURE__*/XML_HEADER.match(tagregex1) ? tagregex1 : tagregex2;
+var tagregex=/<[\/\?]?[a-zA-Z0-9:]+(?:\s+[^"\s?>\/]+\s*=\s*(?:"[^"]*"|'[^']*'|[^'">\s=]+))*\s?[\/\?]?>/g;
+if(!(XML_HEADER.match(tagregex))) tagregex = /<[^>]*>/g;
 var nsregex=/<\w*:/, nsregex2 = /<(\/?)\w+:/;
-function parsexmltag(tag/*:string*/, skip_root/*:?boolean*/, skip_LC/*:?boolean*/)/*:any*/ {
+function parsexmltag(tag/*:string*/, skip_root/*:?boolean*/)/*:any*/ {
 	var z = ({}/*:any*/);
 	var eq = 0, c = 0;
 	for(; eq !== tag.length; ++eq) if((c = tag.charCodeAt(eq)) === 32 || c === 10 || c === 13) break;
@ -21,13 +21,11 @@ function parsexmltag(tag/*:string*/, skip_root/*:?boolean*/, skip_LC/*:?boolean*
 		if(j===q.length) {
 			if(q.indexOf("_") > 0) q = q.slice(0, q.indexOf("_")); // from ods
 			z[q] = v;
-			if(!skip_LC) z[q.toLowerCase()] = v;
 		}
 		else {
 			var k = (j===5 && q.slice(0,5)==="xmlns"?"xmlns":"")+q.slice(j+1);
 			if(z[k] && q.slice(j-3,j) == "ext") continue; // from ods
 			z[k] = v;
-			if(!skip_LC) z[k.toLowerCase()] = v;
 		}
 	}
 	return z;
@ -41,26 +39,22 @@ var encodings = {
 	'&lt;': '<',
 	'&amp;': '&'
 };
-var rencoding = /*#__PURE__*/evert(encodings);
+var rencoding = evert(encodings);
 //var rencstr = "&<>'\"".split("");

 // TODO: CP remap (need to read file version to determine OS)
-var unescapexml/*:StringConv*/ = /*#__PURE__*/(function() {
+var unescapexml/*:StringConv*/ = (function() {
 	/* 22.4.2.4 bstr (Basic String) */
-	var encregex = /&(?:quot|apos|gt|lt|amp|#x?([\da-fA-F]+));/ig, coderegex = /_x([\da-fA-F]{4})_/ig;
-	function raw_unescapexml(text/*:string*/)/*:string*/ {
+	var encregex = /&(?:quot|apos|gt|lt|amp|#x?([\da-fA-F]+));/g, coderegex = /_x([\da-fA-F]{4})_/g;
+	return function unescapexml(text/*:string*/)/*:string*/ {
 		var s = text + '', i = s.indexOf("<![CDATA[");
 		if(i == -1) return s.replace(encregex, function($$, $1) { return encodings[$$]||String.fromCharCode(parseInt($1,$$.indexOf("x")>-1?16:10))||$$; }).replace(coderegex,function(m,c) {return String.fromCharCode(parseInt(c,16));});
 		var j = s.indexOf("]]>");
-		return raw_unescapexml(s.slice(0, i)) + s.slice(i+9,j) + raw_unescapexml(s.slice(j+3));
-	}
-	return function unescapexml(text/*:string*/, xlsx/*:boolean*/) {
-		var out = raw_unescapexml(text);
-		return xlsx ? out.replace(/\r\n/g, "\n") : out;
+		return unescapexml(s.slice(0, i)) + s.slice(i+9,j) + unescapexml(s.slice(j+3));
 	};
 })();

-var decregex=/[&<>'"]/g, charegex = /[\u0000-\u0008\u000b-\u001f\uFFFE-\uFFFF]/g;
+var decregex=/[&<>'"]/g, charegex = /[\u0000-\u0008\u000b-\u001f]/g;
 function escapexml(text/*:string*/)/*:string*/{
 	var s = text + '';
 	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(charegex,function(s) { return "_x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + "_";});
@ -70,7 +64,7 @@ function escapexmltag(text/*:string*/)/*:string*/{ return escapexml(text).replac
 var htmlcharegex = /[\u0000-\u001f]/g;
 function escapehtml(text/*:string*/)/*:string*/{
 	var s = text + '';
-	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(/\n/g, "<br/>").replace(htmlcharegex,function(s) { return "&#x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + ";"; });
+	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(htmlcharegex,function(s) { return "&#x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + ";"; });
 }

 function escapexlml(text/*:string*/)/*:string*/{
@ -79,24 +73,24 @@ function escapexlml(text/*:string*/)/*:string*/{
 }

 /* TODO: handle codepages */
-var xlml_fixstr/*:StringConv*/ = /*#__PURE__*/(function() {
+var xlml_fixstr/*:StringConv*/ = (function() {
 	var entregex = /&#(\d+);/g;
 	function entrepl($$/*:string*/,$1/*:string*/)/*:string*/ { return String.fromCharCode(parseInt($1,10)); }
 	return function xlml_fixstr(str/*:string*/)/*:string*/ { return str.replace(entregex,entrepl); };
 })();
-function xlml_unfixstr(str/*:string*/)/*:string*/ { return str.replace(/(\r\n|[\r\n])/g,"\&#10;"); }
+var xlml_unfixstr/*:StringConv*/ = (function() {
+	return function xlml_unfixstr(str/*:string*/)/*:string*/ { return str.replace(/(\r\n|[\r\n])/g,"\&#10;"); };
+})();

-/* note: xsd:boolean valid values: true / 1 / false / 0 */
 function parsexmlbool(value/*:any*/)/*:boolean*/ {
 	switch(value) {
-		case 1: case true:  case '1': case 'true':  return true;
-		case 0: case false: case '0': case 'false': return false;
-		//default: throw new Error("Invalid xsd:boolean " + value);
+		case 1: case true: case '1': case 'true': case 'TRUE': return true;
+		/* case '0': case 'false': case 'FALSE':*/
+		default: return false;
 	}
-	return false;
 }

-function utf8reada(orig/*:string*/)/*:string*/ {
+var utf8read/*:StringConv*/ = function utf8reada(orig/*:string*/)/*:string*/ {
 	var out = "", i = 0, c = 0, d = 0, e = 0, f = 0, w = 0;
 	while (i < orig.length) {
 		c = orig.charCodeAt(i++);
@ -111,31 +105,9 @@ function utf8reada(orig/*:string*/)/*:string*/ {
 		out += String.fromCharCode(0xDC00 + (w&1023));
 	}
 	return out;
-}
+};

-function utf8readb(data) {
-	var out = new_raw_buf(2*data.length), w, i, j = 1, k = 0, ww=0, c;
-	for(i = 0; i < data.length; i+=j) {
-		j = 1;
-		if((c=data.charCodeAt(i)) < 128) w = c;
-		else if(c < 224) { w = (c&31)*64+(data.charCodeAt(i+1)&63); j=2; }
-		else if(c < 240) { w=(c&15)*4096+(data.charCodeAt(i+1)&63)*64+(data.charCodeAt(i+2)&63); j=3; }
-		else { j = 4;
-			w = (c & 7)*262144+(data.charCodeAt(i+1)&63)*4096+(data.charCodeAt(i+2)&63)*64+(data.charCodeAt(i+3)&63);
-			w -= 65536; ww = 0xD800 + ((w>>>10)&1023); w = 0xDC00 + (w&1023);
-		}
-		if(ww !== 0) { out[k++] = ww&255; out[k++] = ww>>>8; ww = 0; }
-		out[k++] = w%256; out[k++] = w>>>8;
-	}
-	return out.slice(0,k).toString('ucs2');
-}
-
-function utf8readc(data) { return Buffer_from(data, 'binary').toString('utf8'); }
-
-var utf8corpus = "foo bar baz\u00e2\u0098\u0083\u00f0\u009f\u008d\u00a3";
-var utf8read = has_buf && (/*#__PURE__*/utf8readc(utf8corpus) == /*#__PURE__*/utf8reada(utf8corpus) && utf8readc || /*#__PURE__*/utf8readb(utf8corpus) == /*#__PURE__*/utf8reada(utf8corpus) && utf8readb) || utf8reada;
-
-var utf8write/*:StringConv*/ = has_buf ? function(data) { return Buffer_from(data, 'utf8').toString("binary"); } : function(orig/*:string*/)/*:string*/ {
+var utf8write/*:StringConv*/ = function(orig/*:string*/)/*:string*/ {
 	var out/*:Array<string>*/ = [], i = 0, c = 0, d = 0;
 	while(i < orig.length) {
 		c = orig.charCodeAt(i++);
@ -161,8 +133,34 @@ var utf8write/*:StringConv*/ = has_buf ? function(data) { return Buffer_from(dat
 	return out.join("");
 };

+if(has_buf) {
+	var utf8readb = function utf8readb(data) {
+		var out = Buffer.alloc(2*data.length), w, i, j = 1, k = 0, ww=0, c;
+		for(i = 0; i < data.length; i+=j) {
+			j = 1;
+			if((c=data.charCodeAt(i)) < 128) w = c;
+			else if(c < 224) { w = (c&31)*64+(data.charCodeAt(i+1)&63); j=2; }
+			else if(c < 240) { w=(c&15)*4096+(data.charCodeAt(i+1)&63)*64+(data.charCodeAt(i+2)&63); j=3; }
+			else { j = 4;
+				w = (c & 7)*262144+(data.charCodeAt(i+1)&63)*4096+(data.charCodeAt(i+2)&63)*64+(data.charCodeAt(i+3)&63);
+				w -= 65536; ww = 0xD800 + ((w>>>10)&1023); w = 0xDC00 + (w&1023);
+			}
+			if(ww !== 0) { out[k++] = ww&255; out[k++] = ww>>>8; ww = 0; }
+			out[k++] = w%256; out[k++] = w>>>8;
+		}
+		return out.slice(0,k).toString('ucs2');
+	};
+	var corpus = "foo bar baz\u00e2\u0098\u0083\u00f0\u009f\u008d\u00a3";
+	if(utf8read(corpus) == utf8readb(corpus)) utf8read = utf8readb;
+	// $FlowIgnore
+	var utf8readc = function utf8readc(data) { return Buffer.from(data, 'binary').toString('utf8'); };
+	if(utf8read(corpus) == utf8readc(corpus)) utf8read = utf8readc;
+
+	utf8write = function(data) { return Buffer.from(data, 'utf8').toString("binary"); };
+}
+
 // matches <foo>...</foo> extracts content
-var matchtag = /*#__PURE__*/(function() {
+var matchtag = (function() {
 	var mtcache/*:{[k:string]:RegExp}*/ = ({}/*:any*/);
 	return function matchtag(f/*:string*/,g/*:?string*/)/*:RegExp*/ {
 		var t = f+"|"+(g||"");
@ -171,31 +169,19 @@ var matchtag = /*#__PURE__*/(function() {
 	};
 })();

-var htmldecode/*:{(s:string):string}*/ = /*#__PURE__*/(function() {
+var htmldecode/*:{(s:string):string}*/ = (function() {
 	var entities/*:Array<[RegExp, string]>*/ = [
 		['nbsp', ' '], ['middot', '·'],
 		['quot', '"'], ['apos', "'"], ['gt',   '>'], ['lt',   '<'], ['amp',  '&']
-	].map(function(x/*:[string, string]*/) { return [new RegExp('&' + x[0] + ';', "ig"), x[1]]; });
+	].map(function(x/*:[string, string]*/) { return [new RegExp('&' + x[0] + ';', "g"), x[1]]; });
 	return function htmldecode(str/*:string*/)/*:string*/ {
-		var o = str
-				// Remove new lines and spaces from start of content
-				.replace(/^[\t\n\r ]+/, "")
-				// Remove new lines and spaces from end of content
-				.replace(/[\t\n\r ]+$/,"")
-				// Added line which removes any white space characters after and before html tags
-				.replace(/>\s+/g,">").replace(/\s+</g,"<")
-				// Replace remaining new lines and spaces with space
-				.replace(/[\t\n\r ]+/g, " ")
-				// Replace <br> tags with new lines
-				.replace(/<\s*[bB][rR]\s*\/?>/g,"\n")
-				// Strip HTML elements
-				.replace(/<[^>]*>/g,"");
+		var o = str.trim().replace(/\s+/g, " ").replace(/<\s*[bB][rR]\s*\/?>/g,"\n").replace(/<[^>]*>/g,"");
 		for(var i = 0; i < entities.length; ++i) o = o.replace(entities[i][0], entities[i][1]);
 		return o;
 	};
 })();

-var vtregex = /*#__PURE__*/(function(){ var vt_cache = {};
+var vtregex = (function(){ var vt_cache = {};
 	return function vt_regex(bt) {
 		if(vt_cache[bt] !== undefined) return vt_cache[bt];
 		return (vt_cache[bt] = new RegExp("<(?:vt:)?" + bt + ">([\\s\\S]*?)</(?:vt:)?" + bt + ">", 'g') );
@ -225,37 +211,17 @@ function writextag(f/*:string*/,g/*:?string*/,h) { return '<' + f + ((h != null)

 function write_w3cdtf(d/*:Date*/, t/*:?boolean*/)/*:string*/ { try { return d.toISOString().replace(/\.\d*/,""); } catch(e) { if(t) throw e; } return ""; }

-function write_vt(s, xlsx/*:?boolean*/)/*:string*/ {
+function write_vt(s)/*:string*/ {
 	switch(typeof s) {
-		case 'string':
-			var o = writextag('vt:lpwstr', escapexml(s));
-			if(xlsx) o = o.replace(/&quot;/g, "_x0022_");
-			return o;
-		case 'number': return writextag((s|0)==s?'vt:i4':'vt:r8', escapexml(String(s)));
+		case 'string': return writextag('vt:lpwstr', s);
+		case 'number': return writextag((s|0)==s?'vt:i4':'vt:r8', String(s));
 		case 'boolean': return writextag('vt:bool',s?'true':'false');
 	}
 	if(s instanceof Date) return writextag('vt:filetime', write_w3cdtf(s));
 	throw new Error("Unable to serialize " + s);
 }

-function xlml_normalize(d)/*:string*/ {
-	if(has_buf &&/*::typeof Buffer !== "undefined" && d != null && d instanceof Buffer &&*/ Buffer.isBuffer(d)) return d.toString('utf8');
-	if(typeof d === 'string') return d;
-	/* duktape */
-	if(typeof Uint8Array !== 'undefined' && d instanceof Uint8Array) return utf8read(a2s(ab2a(d)));
-	throw new Error("Bad input format: expected Buffer or string");
-}
-/* UOS uses CJK in tags */
-var xlmlregex = /<(\/?)([^\s?><!\/:]*:|)([^\s?<>:\/]+)(?:[\s?:\/](?:[^>=]|="[^"]*?")*)?>/mg;
-//var xlmlregex = /<(\/?)([a-z0-9]*:|)(\w+)[^>]*>/mg;
-
 var XMLNS = ({
-	CORE_PROPS: 'http://schemas.openxmlformats.org/package/2006/metadata/core-properties',
-	CUST_PROPS: "http://schemas.openxmlformats.org/officeDocument/2006/custom-properties",
-	EXT_PROPS: "http://schemas.openxmlformats.org/officeDocument/2006/extended-properties",
-	CT: 'http://schemas.openxmlformats.org/package/2006/content-types',
-	RELS: 'http://schemas.openxmlformats.org/package/2006/relationships',
-	TCMNT: 'http://schemas.microsoft.com/office/spreadsheetml/2018/threadedcomments',
 	'dc': 'http://purl.org/dc/elements/1.1/',
 	'dcterms': 'http://purl.org/dc/terms/',
 	'dcmitype': 'http://purl.org/dc/dcmitype/',
@ -267,7 +233,7 @@ var XMLNS = ({
 	'xsd': 'http://www.w3.org/2001/XMLSchema'
 }/*:any*/);

-var XMLNS_main = [
+XMLNS.main = [
 	'http://schemas.openxmlformats.org/spreadsheetml/2006/main',
 	'http://purl.oclc.org/ooxml/spreadsheetml/main',
 	'http://schemas.microsoft.com/office/excel/2006/main',
--- a/bits/23_binutils.js
+++ b/bits/23_binutils.js
@ -25,59 +25,53 @@ function write_double_le(b/*:RawBytes|CFBlob*/, v/*:number*/, idx/*:number*/) {
 	b[idx + 7] = (e >> 4) | bs;
 }

-var ___toBuffer = function(bufs/*:Array<Array<RawBytes> >*/)/*:RawBytes*/ { var x=[],w=10240; for(var i=0;i<bufs[0].length;++i) if(bufs[0][i]) for(var j=0,L=bufs[0][i].length;j<L;j+=w) x.push.apply(x, bufs[0][i].slice(j,j+w)); return x; };
-var __toBuffer = has_buf ? function(bufs) { return (bufs[0].length > 0 && Buffer.isBuffer(bufs[0][0])) ? Buffer.concat(bufs[0].map(function(x) { return Buffer.isBuffer(x) ? x : Buffer_from(x); })) : ___toBuffer(bufs);} : ___toBuffer;
-
-var ___utf16le = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/)/*:string*/ { var ss/*:Array<string>*/=[]; for(var i=s; i<e; i+=2) ss.push(String.fromCharCode(__readUInt16LE(b,i))); return ss.join("").replace(chr0,''); };
-var __utf16le = has_buf ? function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/)/*:string*/ { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/ || !buf_utf16le) return ___utf16le(b,s,e); return b.toString('utf16le',s,e).replace(chr0,'')/*.replace(chr1,'!')*/; } : ___utf16le;
-
-var ___hexlify = function(b/*:RawBytes|CFBlob*/,s/*:number*/,l/*:number*/)/*:string*/ { var ss/*:Array<string>*/=[]; for(var i=s; i<s+l; ++i) ss.push(("0" + b[i].toString(16)).slice(-2)); return ss.join(""); };
-var __hexlify = has_buf ? function(b/*:RawBytes|CFBlob*/,s/*:number*/,l/*:number*/)/*:string*/ { return Buffer.isBuffer(b)/*:: && b instanceof Buffer*/ ? b.toString('hex',s,s+l) : ___hexlify(b,s,l); } : ___hexlify;
-
-var ___utf8 = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/) { var ss=[]; for(var i=s; i<e; i++) ss.push(String.fromCharCode(__readUInt8(b,i))); return ss.join(""); };
-var __utf8 = has_buf ? function utf8_b(b/*:RawBytes|CFBlob*/, s/*:number*/, e/*:number*/) { return (Buffer.isBuffer(b)/*:: && (b instanceof Buffer)*/) ? b.toString('utf8',s,e) : ___utf8(b,s,e); } : ___utf8;
-
-var ___lpstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
-var __lpstr = ___lpstr;
-
-var ___cpstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
-var __cpstr = ___cpstr;
-
-var ___lpwstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = 2*__readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
-var __lpwstr = ___lpwstr;
-
-var ___lpp4 = function lpp4_(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? __utf16le(b, i+4,i+4+len) : "";};
-var __lpp4 = ___lpp4;
-
-var ___8lpp4 = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len) : "";};
-var __8lpp4 = ___8lpp4;
-
-var ___double = function(b/*:RawBytes|CFBlob*/, idx/*:number*/) { return read_double_le(b, idx);};
-var __double = ___double;
-
-var is_buf = function is_buf_a(a) { return Array.isArray(a) || (typeof Uint8Array !== "undefined" && a instanceof Uint8Array); };
+var __toBuffer = function(bufs/*:Array<Array<RawBytes> >*/)/*:RawBytes*/ { var x=[],w=10240; for(var i=0;i<bufs[0].length;++i) if(bufs[0][i]) for(var j=0,L=bufs[0][i].length;j<L;j+=w) x.push.apply(x, bufs[0][i].slice(j,j+w)); return x; };
+var ___toBuffer = __toBuffer;
+var __utf16le = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/)/*:string*/ { var ss/*:Array<string>*/=[]; for(var i=s; i<e; i+=2) ss.push(String.fromCharCode(__readUInt16LE(b,i))); return ss.join("").replace(chr0,''); };
+var ___utf16le = __utf16le;
+var __hexlify = function(b/*:RawBytes|CFBlob*/,s/*:number*/,l/*:number*/)/*:string*/ { var ss/*:Array<string>*/=[]; for(var i=s; i<s+l; ++i) ss.push(("0" + b[i].toString(16)).slice(-2)); return ss.join(""); };
+var ___hexlify = __hexlify;
+var __utf8 = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/) { var ss=[]; for(var i=s; i<e; i++) ss.push(String.fromCharCode(__readUInt8(b,i))); return ss.join(""); };
+var ___utf8 = __utf8;
+var __lpstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
+var ___lpstr = __lpstr;
+var __cpstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
+var ___cpstr = __cpstr;
+var __lpwstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = 2*__readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
+var ___lpwstr = __lpwstr;
+var __lpp4, ___lpp4;
+__lpp4 = ___lpp4 = function lpp4_(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? __utf16le(b, i+4,i+4+len) : "";};
+var __8lpp4 = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len) : "";};
+var ___8lpp4 = __8lpp4;
+var __double, ___double;
+__double = ___double = function(b/*:RawBytes|CFBlob*/, idx/*:number*/) { return read_double_le(b, idx);};
+var is_buf = function is_buf_a(a) { return Array.isArray(a); };

 if(has_buf/*:: && typeof Buffer !== 'undefined'*/) {
+	__utf16le = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/)/*:string*/ { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/) return ___utf16le(b,s,e); return b.toString('utf16le',s,e).replace(chr0,'')/*.replace(chr1,'!')*/; };
+	__hexlify = function(b/*:RawBytes|CFBlob*/,s/*:number*/,l/*:number*/)/*:string*/ { return Buffer.isBuffer(b)/*:: && b instanceof Buffer*/ ? b.toString('hex',s,s+l) : ___hexlify(b,s,l); };
 	__lpstr = function lpstr_b(b/*:RawBytes|CFBlob*/, i/*:number*/) { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/) return ___lpstr(b, i); var len = b.readUInt32LE(i); return len > 0 ? b.toString('utf8',i+4,i+4+len-1) : "";};
 	__cpstr = function cpstr_b(b/*:RawBytes|CFBlob*/, i/*:number*/) { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/) return ___cpstr(b, i); var len = b.readUInt32LE(i); return len > 0 ? b.toString('utf8',i+4,i+4+len-1) : "";};
-	__lpwstr = function lpwstr_b(b/*:RawBytes|CFBlob*/, i/*:number*/) { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/ || !buf_utf16le) return ___lpwstr(b, i); var len = 2*b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len-1);};
-	__lpp4 = function lpp4_b(b/*:RawBytes|CFBlob*/, i/*:number*/) { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/ || !buf_utf16le) return ___lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len);};
+	__lpwstr = function lpwstr_b(b/*:RawBytes|CFBlob*/, i/*:number*/) { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/) return ___lpwstr(b, i); var len = 2*b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len-1);};
+	__lpp4 = function lpp4_b(b/*:RawBytes|CFBlob*/, i/*:number*/) { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/) return ___lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len);};
 	__8lpp4 = function lpp4_8b(b/*:RawBytes|CFBlob*/, i/*:number*/) { if(!Buffer.isBuffer(b)/*:: || !(b instanceof Buffer)*/) return ___8lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf8',i+4,i+4+len);};
+	__utf8 = function utf8_b(b/*:RawBytes|CFBlob*/, s/*:number*/, e/*:number*/) { return (Buffer.isBuffer(b)/*:: && (b instanceof Buffer)*/) ? b.toString('utf8',s,e) : ___utf8(b,s,e); };
+	__toBuffer = function(bufs) { return (bufs[0].length > 0 && Buffer.isBuffer(bufs[0][0])) ? Buffer.concat(bufs[0]) : ___toBuffer(bufs);};
+	bconcat = function(bufs) { return Buffer.isBuffer(bufs[0]) ? Buffer.concat(bufs) : [].concat.apply([], bufs); };
 	__double = function double_(b/*:RawBytes|CFBlob*/, i/*:number*/) { if(Buffer.isBuffer(b)/*::&& b instanceof Buffer*/) return b.readDoubleLE(i); return ___double(b,i); };
-	is_buf = function is_buf_b(a) { return Buffer.isBuffer(a) || Array.isArray(a) || (typeof Uint8Array !== "undefined" && a instanceof Uint8Array); };
+	is_buf = function is_buf_b(a) { return Buffer.isBuffer(a) || Array.isArray(a); };
 }

 /* from js-xls */
-function cpdoit() {
-	__utf16le = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/) { return $cptable.utils.decode(1200, b.slice(s,e)).replace(chr0, ''); };
-	__utf8 = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/) { return $cptable.utils.decode(65001, b.slice(s,e)); };
-	__lpstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(current_ansi, b.slice(i+4, i+4+len-1)) : "";};
-	__cpstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(current_codepage, b.slice(i+4, i+4+len-1)) : "";};
-	__lpwstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = 2*__readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(1200, b.slice(i+4,i+4+len-1)) : "";};
-	__lpp4 = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(1200, b.slice(i+4,i+4+len)) : "";};
-	__8lpp4 = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(65001, b.slice(i+4,i+4+len)) : "";};
+if(typeof cptable !== 'undefined') {
+	__utf16le = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/) { return cptable.utils.decode(1200, b.slice(s,e)).replace(chr0, ''); };
+	__utf8 = function(b/*:RawBytes|CFBlob*/,s/*:number*/,e/*:number*/) { return cptable.utils.decode(65001, b.slice(s,e)); };
+	__lpstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(current_ansi, b.slice(i+4, i+4+len-1)) : "";};
+	__cpstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(current_codepage, b.slice(i+4, i+4+len-1)) : "";};
+	__lpwstr = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = 2*__readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(1200, b.slice(i+4,i+4+len-1)) : "";};
+	__lpp4 = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(1200, b.slice(i+4,i+4+len)) : "";};
+	__8lpp4 = function(b/*:RawBytes|CFBlob*/,i/*:number*/) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(65001, b.slice(i+4,i+4+len)) : "";};
 }
-if(typeof $cptable !== 'undefined') cpdoit();

 var __readUInt8 = function(b/*:RawBytes|CFBlob*/, idx/*:number*/)/*:number*/ { return b[idx]; };
 var __readUInt16LE = function(b/*:RawBytes|CFBlob*/, idx/*:number*/)/*:number*/ { return (b[idx+1]*(1<<8))+b[idx]; };
@ -91,7 +85,7 @@ function ReadShift(size/*:number*/, t/*:?string*/)/*:number|string*/ {
 	switch(t) {
 		case 'dbcs':
 			loc = this.l;
-			if(has_buf && Buffer.isBuffer(this)  && buf_utf16le) o = this.slice(this.l, this.l+2*size).toString("utf16le");
+			if(has_buf && Buffer.isBuffer(this)) o = this.slice(this.l, this.l+2*size).toString("utf16le");
 			else for(i = 0; i < size; ++i) { o+=String.fromCharCode(__readUInt16LE(this, loc)); loc+=2; }
 			size *= 2;
 			break;
@ -100,7 +94,7 @@ function ReadShift(size/*:number*/, t/*:?string*/)/*:number|string*/ {
 		case 'utf16le': size *= 2; o = __utf16le(this, this.l, this.l + size); break;

 		case 'wstr':
-			if(typeof $cptable !== 'undefined') o = $cptable.utils.decode(current_codepage, this.slice(this.l, this.l+2*size));
+			if(typeof cptable !== 'undefined') o = cptable.utils.decode(current_codepage, this.slice(this.l, this.l+2*size));
 			else return ReadShift.call(this, size, 'dbcs');
 			size = 2 * size; break;

@ -135,8 +129,8 @@ function ReadShift(size/*:number*/, t/*:?string*/)/*:number|string*/ {
 			} o = oo.join(""); size *= 2; break;

 		case 'cpstr':
-			if(typeof $cptable !== 'undefined') {
-				o = $cptable.utils.decode(current_codepage, this.slice(this.l, this.l + size));
+			if(typeof cptable !== 'undefined') {
+				o = cptable.utils.decode(current_codepage, this.slice(this.l, this.l + size));
 				break;
 			}
 		/* falls through */
@ -181,29 +175,13 @@ function WriteShift(t/*:number*/, val/*:string|number*/, f/*:?string*/)/*:any*/
 		/*:: if(typeof val !== 'string') throw new Error("unreachable"); */
 		for(i = 0; i != val.length; ++i) __writeUInt16LE(this, val.charCodeAt(i), this.l + 2 * i);
 		size = 2 * val.length;
-	} else if(f === 'sbcs' || f == 'cpstr') {
-		if(typeof $cptable !== 'undefined' && current_ansi == 874) {
-			/* TODO: use tables directly, don't encode */
-			/*:: if(typeof val !== "string") throw new Error("unreachable"); */
-			for(i = 0; i != val.length; ++i) {
-				var cpp = $cptable.utils.encode(current_ansi, val.charAt(i));
-				this[this.l + i] = cpp[0];
-			}
-			size = val.length;
-		} else if(typeof $cptable !== 'undefined' && f == 'cpstr') {
-			cpp = $cptable.utils.encode(current_codepage, val);
-			/* replace null bytes with _ when relevant */
-      if(cpp.length == val.length) for(i = 0; i < val.length; ++i) if(cpp[i] == 0 && val.charCodeAt(i) != 0) cpp[i] = 0x5F;
-      if(cpp.length == 2 * val.length) for(i = 0; i < val.length; ++i) if(cpp[2*i] == 0 && cpp[2*i+1] == 0 && val.charCodeAt(i) != 0) cpp[2*i] = 0x5F;
-			for(i = 0; i < cpp.length; ++i) this[this.l + i] = cpp[i];
-			size = cpp.length;
-		} else {
-			/*:: if(typeof val !== 'string') throw new Error("unreachable"); */
-			val = val.replace(/[^\x00-\x7F]/g, "_");
-			/*:: if(typeof val !== 'string') throw new Error("unreachable"); */
-			for(i = 0; i != val.length; ++i) this[this.l + i] = (val.charCodeAt(i) & 0xFF);
-			size = val.length;
-		}
+	} else if(f === 'sbcs') {
+		/* TODO: codepage */
+		/*:: if(typeof val !== 'string') throw new Error("unreachable"); */
+		val = val.replace(/[^\x00-\x7F]/g, "_");
+		/*:: if(typeof val !== 'string') throw new Error("unreachable"); */
+		for(i = 0; i != val.length; ++i) this[this.l + i] = (val.charCodeAt(i) & 0xFF);
+		size = val.length;
 	} else if(f === 'hex') {
 		for(; i < t; ++i) {
 			/*:: if(typeof val !== "string") throw new Error("unreachable"); */
--- a/bits/24_hoppers.js
+++ b/bits/24_hoppers.js
@ -12,9 +12,9 @@ function recordhopper(data, cb/*:RecordHopperCB*/, opts/*:?any*/) {
 		length = tmpbyte & 0x7F;
 		for(cntbyte = 1; cntbyte <4 && (tmpbyte & 0x80); ++cntbyte) length += ((tmpbyte = data.read_shift(1)) & 0x7F)<<(7*cntbyte);
 		tgt = data.l + length;
-		var d = R.f && R.f(data, length, opts);
+		var d = (R.f||parsenoop)(data, length, opts);
 		data.l = tgt;
-		if(cb(d, R, RT)) return;
+		if(cb(d, R.n, RT)) return;
 	}
 }

@ -31,11 +31,8 @@ function buf_array()/*:BufArray*/ {

 	var endbuf = function ba_endbuf() {
 		if(!curbuf) return;
-		// workaround for new Buffer(3).slice(0,0) bug in bun 0.1.3
-		if(curbuf.l) {
-			if(curbuf.length > curbuf.l) { curbuf = curbuf.slice(0, curbuf.l); curbuf.l = curbuf.length; }
-			if(curbuf.length > 0) bufs.push(curbuf);
-		}
+		if(curbuf.length > curbuf.l) { curbuf = curbuf.slice(0, curbuf.l); curbuf.l = curbuf.length; }
+		if(curbuf.length > 0) bufs.push(curbuf);
 		curbuf = null;
 	};

@ -47,7 +44,7 @@ function buf_array()/*:BufArray*/ {

 	var end = function ba_end() {
 		endbuf();
-		return bconcat(bufs);
+		return __toBuffer([bufs]);
 	};

 	var push = function ba_push(buf) { endbuf(); curbuf = buf; if(curbuf.l == null) curbuf.l = curbuf.length; next(blksz); };
@ -55,8 +52,8 @@ function buf_array()/*:BufArray*/ {
 	return ({ next:next, push:push, end:end, _bufs:bufs }/*:any*/);
 }

-function write_record(ba/*:BufArray*/, type/*:number*/, payload, length/*:?number*/) {
-	var t/*:number*/ = +type, l;
+function write_record(ba/*:BufArray*/, type/*:string*/, payload, length/*:?number*/) {
+	var t/*:number*/ = +XLSBRE[type], l;
 	if(isNaN(t)) return; // TODO: throw something here?
 	if(!length) length = XLSBRecordEnum[t].p || (payload||[]).length || 0;
 	l = 1 + (t >= 0x80 ? 1 : 0) + 1/* + length*/;
--- a/bits/25_cellutils.js
+++ b/bits/25_cellutils.js
@ -23,11 +23,11 @@ function shift_range_xls(cell, range, opts) {
 }

 function encode_cell_xls(c/*:CellAddress*/, biff/*:number*/)/*:string*/ {
-	if(c.cRel && c.c < 0) { c = dup(c); while(c.c < 0) c.c += (biff > 8) ? 0x4000 : 0x100; }
-	if(c.rRel && c.r < 0) { c = dup(c); while(c.r < 0) c.r += (biff > 8) ? 0x100000 : ((biff > 5) ? 0x10000 : 0x4000); }
+	if(c.cRel && c.c < 0) { c = dup(c); c.c += (biff > 8) ? 0x4000 : 0x100; }
+	if(c.rRel && c.r < 0) { c = dup(c); c.r += (biff > 8) ? 0x100000 : ((biff > 5) ? 0x10000 : 0x4000); }
 	var s = encode_cell(c);
-	if(!c.cRel && c.cRel != null) s = fix_col(s);
-	if(!c.rRel && c.rRel != null) s = fix_row(s);
+	if(c.cRel === 0) s = fix_col(s);
+	if(c.rRel === 0) s = fix_row(s);
 	return s;
 }

@ -38,7 +38,7 @@ function encode_range_xls(r, opts)/*:string*/ {
 		}
 	}
 	if(r.s.c == 0 && !r.s.cRel) {
-		if(r.e.c == (opts.biff >= 12 ? 0x3FFF : 0xFF) && !r.e.cRel) {
+		if(r.e.c == (opts.biff >= 12 ? 0xFFFF : 0xFF) && !r.e.cRel) {
 			return (r.s.rRel ? "" : "$") + encode_row(r.s.r) + ":" + (r.e.rRel ? "" : "$") + encode_row(r.e.r);
 		}
 	}
--- a/bits/26_cptable.js
+++ b/bits/26_cptable.js
@ -1,4 +0,0 @@
-if(typeof cptable !== 'undefined') set_cptable(cptable);
-else if(typeof module !== "undefined" && typeof require !== 'undefined') {
-	set_cptable(require('./dist/cpexcel.js'));
-}
--- a/bits/26_crypto.js
+++ b/bits/26_crypto.js
@ -0,0 +1,38 @@
+var OFFCRYPTO = {};
+
+var make_offcrypto = function(O, _crypto) {
+	var crypto;
+	if(typeof _crypto !== 'undefined') crypto = _crypto;
+	else if(typeof require !== 'undefined') {
+		try { crypto = require('crypto'); }
+		catch(e) { crypto = null; }
+	}
+
+	O.rc4 = function(key, data) {
+		var S = new Array(256);
+		var c = 0, i = 0, j = 0, t = 0;
+		for(i = 0; i != 256; ++i) S[i] = i;
+		for(i = 0; i != 256; ++i) {
+			j = (j + S[i] + (key[i%key.length]).charCodeAt(0))&255;
+			t = S[i]; S[i] = S[j]; S[j] = t;
+		}
+		// $FlowIgnore
+		i = j = 0; var out = Buffer(data.length);
+		for(c = 0; c != data.length; ++c) {
+			i = (i + 1)&255;
+			j = (j + S[i])%256;
+			t = S[i]; S[i] = S[j]; S[j] = t;
+			out[c] = (data[c] ^ S[(S[i]+S[j])&255]);
+		}
+		return out;
+	};
+
+	O.md5 = function(hex) {
+		if(!crypto) throw new Error("Unsupported crypto");
+		return crypto.createHash('md5').update(hex).digest('hex');
+	};
+};
+/*:: declare var crypto:any; */
+/*global crypto:true */
+make_offcrypto(OFFCRYPTO, typeof crypto !== "undefined" ? crypto : undefined);
+
--- a/bits/27_csfutils.js
+++ b/bits/27_csfutils.js
@ -4,31 +4,14 @@ function fix_row(cstr/*:string*/)/*:string*/ { return cstr.replace(/([A-Z]|^)(\d
 function unfix_row(cstr/*:string*/)/*:string*/ { return cstr.replace(/\$(\d+)$/,"$1"); }

 function decode_col(colstr/*:string*/)/*:number*/ { var c = unfix_col(colstr), d = 0, i = 0; for(; i !== c.length; ++i) d = 26*d + c.charCodeAt(i) - 64; return d - 1; }
-function encode_col(col/*:number*/)/*:string*/ { if(col < 0) throw new Error("invalid column " + col); var s=""; for(++col; col; col=Math.floor((col-1)/26)) s = String.fromCharCode(((col-1)%26) + 65) + s; return s; }
+function encode_col(col/*:number*/)/*:string*/ { var s=""; for(++col; col; col=Math.floor((col-1)/26)) s = String.fromCharCode(((col-1)%26) + 65) + s; return s; }
 function fix_col(cstr/*:string*/)/*:string*/ { return cstr.replace(/^([A-Z])/,"$$$1"); }
 function unfix_col(cstr/*:string*/)/*:string*/ { return cstr.replace(/^\$([A-Z])/,"$1"); }

 function split_cell(cstr/*:string*/)/*:Array<string>*/ { return cstr.replace(/(\$?[A-Z]*)(\$?\d*)/,"$1,$2").split(","); }
-function decode_cell(cstr/*:string*/)/*:CellAddress*/ {
-	var R = 0, C = 0;
-	for(var i = 0; i < cstr.length; ++i) {
-		var cc = cstr.charCodeAt(i);
-		if(cc >= 48 && cc <= 57) R = 10 * R + (cc - 48);
-		else if(cc >= 65 && cc <= 90) C = 26 * C + (cc - 64);
-	}
-	return { c: C - 1, r:R - 1 };
-}
-function encode_cell(cell/*:CellAddress*/)/*:string*/ {
-	var col = cell.c + 1;
-	var s="";
-	for(; col; col=((col-1)/26)|0) s = String.fromCharCode(((col-1)%26) + 65) + s;
-	return s + (cell.r + 1);
-}
-function decode_range(range/*:string*/)/*:Range*/ {
-	var idx = range.indexOf(":");
-	if(idx == -1) return { s: decode_cell(range), e: decode_cell(range) };
-	return { s: decode_cell(range.slice(0, idx)), e: decode_cell(range.slice(idx + 1)) };
-}
+function decode_cell(cstr/*:string*/)/*:CellAddress*/ { var splt = split_cell(cstr); return { c:decode_col(splt[0]), r:decode_row(splt[1]) }; }
+function encode_cell(cell/*:CellAddress*/)/*:string*/ { return encode_col(cell.c) + encode_row(cell.r); }
+function decode_range(range/*:string*/)/*:Range*/ { var x =range.split(":").map(decode_cell); return {s:x[0],e:x[x.length-1]}; }
 /*# if only one arg, it is assumed to be a Range.  If 2 args, both are cell addresses */
 function encode_range(cs/*:CellAddrSpec|Range*/,ce/*:?CellAddrSpec*/)/*:string*/ {
 	if(typeof ce === 'undefined' || typeof ce === 'number') {
@ -42,17 +25,6 @@ function encode_range(cs/*:CellAddrSpec|Range*/,ce/*:?CellAddrSpec*/)/*:string*/
 /*:: if(typeof ce !== 'string') throw "unreachable"; */
 	return cs == ce ? cs : cs + ":" + ce;
 }
-function fix_range(a1/*:string*/)/*:string*/ {
-	var s = decode_range(a1);
-	return "$" + encode_col(s.s.c) + "$" + encode_row(s.s.r) + ":$" + encode_col(s.e.c) + "$" + encode_row(s.e.r);
-}
-
-// List of invalid characters needs to be tested further
-function formula_quote_sheet_name(sname/*:string*/, opts)/*:string*/ {
-	if(!sname && !(opts && opts.biff <= 5 && opts.biff >= 2)) throw new Error("empty sheet name");
-	if (/[^\w\u4E00-\u9FFF\u3040-\u30FF]/.test(sname)) return "'" + sname.replace(/'/g, "''") + "'";
-	return sname;
-}

 function safe_decode_range(range/*:string*/)/*:Range*/ {
 	var o = {s:{c:0,r:0},e:{c:0,r:0}};
@ -70,8 +42,7 @@ function safe_decode_range(range/*:string*/)/*:Range*/ {
 	}
 	o.s.r = --idx;

-	if(i === len || cc != 10) { o.e.c=o.s.c; o.e.r=o.s.r; return o; }
-	++i;
+	if(i === len || range.charCodeAt(++i) === 58) { o.e.c=o.s.c; o.e.r=o.s.r; return o; }

 	for(idx = 0; i != len; ++i) {
 		if((cc=range.charCodeAt(i)-64) < 1 || cc > 26) break;
@ -89,15 +60,14 @@ function safe_decode_range(range/*:string*/)/*:Range*/ {

 function safe_format_cell(cell/*:Cell*/, v/*:any*/) {
 	var q = (cell.t == 'd' && v instanceof Date);
-	if(cell.z != null) try { return (cell.w = SSF_format(cell.z, q ? datenum(v) : v)); } catch(e) { }
-	try { return (cell.w = SSF_format((cell.XF||{}).numFmtId||(q ? 14 : 0),  q ? datenum(v) : v)); } catch(e) { return ''+v; }
+	if(cell.z != null) try { return (cell.w = SSF.format(cell.z, q ? datenum(v) : v)); } catch(e) { }
+	try { return (cell.w = SSF.format((cell.XF||{}).numFmtId||(q ? 14 : 0),  q ? datenum(v) : v)); } catch(e) { return ''+v; }
 }

 function format_cell(cell/*:Cell*/, v/*:any*/, o/*:any*/) {
 	if(cell == null || cell.t == null || cell.t == 'z') return "";
 	if(cell.w !== undefined) return cell.w;
 	if(cell.t == 'd' && !cell.z && o && o.dateNF) cell.z = o.dateNF;
-	if(cell.t == "e") return BErr[cell.v] || cell.v;
 	if(v == undefined) return safe_format_cell(cell, cell.v);
 	return safe_format_cell(cell, v);
 }
@ -110,10 +80,9 @@ function sheet_to_workbook(sheet/*:Worksheet*/, opts)/*:Workbook*/ {

 function sheet_add_aoa(_ws/*:?Worksheet*/, data/*:AOA*/, opts/*:?any*/)/*:Worksheet*/ {
 	var o = opts || {};
-	var dense = _ws ? (_ws["!data"] != null) : o.dense;
+	var dense = _ws ? Array.isArray(_ws) : o.dense;
 	if(DENSE != null && dense == null) dense = DENSE;
-	var ws/*:Worksheet*/ = _ws || ({}/*:any*/);
-	if(dense && !ws["!data"]) ws["!data"] = [];
+	var ws/*:Worksheet*/ = _ws || (dense ? ([]/*:any*/) : ({}/*:any*/));
 	var _R = 0, _C = 0;
 	if(ws && o.origin != null) {
 		if(typeof o.origin == 'number') _R = o.origin;
@ -121,7 +90,6 @@ function sheet_add_aoa(_ws/*:?Worksheet*/, data/*:AOA*/, opts/*:?any*/)/*:Worksh
 			var _origin/*:CellAddress*/ = typeof o.origin == "string" ? decode_cell(o.origin) : o.origin;
 			_R = _origin.r; _C = _origin.c;
 		}
-		if(!ws["!ref"]) ws["!ref"] = "A1:A1";
 	}
 	var range/*:Range*/ = ({s: {c:10000000, r:10000000}, e: {c:0, r:0}}/*:any*/);
 	if(ws['!ref']) {
@ -132,47 +100,30 @@ function sheet_add_aoa(_ws/*:?Worksheet*/, data/*:AOA*/, opts/*:?any*/)/*:Worksh
 		range.e.r = Math.max(range.e.r, _range.e.r);
 		if(_R == -1) range.e.r = _R = _range.e.r + 1;
 	}
-	var row = [];
 	for(var R = 0; R != data.length; ++R) {
-		if(!data[R]) continue;
-		if(!Array.isArray(data[R])) throw new Error("aoa_to_sheet expects an array of arrays");
-		var __R = _R + R, __Rstr = "" + (__R + 1);
-		if(dense) {
-			if(!ws["!data"][__R]) ws["!data"][__R] = [];
-			row = ws["!data"][__R];
-		}
 		for(var C = 0; C != data[R].length; ++C) {
 			if(typeof data[R][C] === 'undefined') continue;
 			var cell/*:Cell*/ = ({v: data[R][C] }/*:any*/);
-			var __C = _C + C;
+			if(Array.isArray(cell.v)) { cell.f = data[R][C][1]; cell.v = cell.v[0]; }
+			var __R = _R + R, __C = _C + C;
 			if(range.s.r > __R) range.s.r = __R;
 			if(range.s.c > __C) range.s.c = __C;
 			if(range.e.r < __R) range.e.r = __R;
 			if(range.e.c < __C) range.e.c = __C;
-			if(data[R][C] && typeof data[R][C] === 'object' && !Array.isArray(data[R][C]) && !(data[R][C] instanceof Date)) cell = data[R][C];
-			else {
-				if(Array.isArray(cell.v)) { cell.f = data[R][C][1]; cell.v = cell.v[0]; }
-				if(cell.v === null) {
-					if(cell.f) cell.t = 'n';
-					else if(o.nullError) { cell.t = 'e'; cell.v = 0; }
-					else if(!o.sheetStubs) continue;
-					else cell.t = 'z';
-				}
-				else if(typeof cell.v === 'number') cell.t = 'n';
-				else if(typeof cell.v === 'boolean') cell.t = 'b';
-				else if(cell.v instanceof Date) {
-					cell.z = o.dateNF || table_fmt[14];
-					if(o.cellDates) { cell.t = 'd'; cell.w = SSF_format(cell.z, datenum(cell.v, o.date1904)); }
-					else { cell.t = 'n'; cell.v = datenum(cell.v, o.date1904); cell.w = SSF_format(cell.z, cell.v); }
-				}
-				else cell.t = 's';
+			if(cell.v === null) { if(cell.f) cell.t = 'n'; else if(!o.cellStubs) continue; else cell.t = 'z'; }
+			else if(typeof cell.v === 'number') cell.t = 'n';
+			else if(typeof cell.v === 'boolean') cell.t = 'b';
+			else if(cell.v instanceof Date) {
+				cell.z = o.dateNF || SSF._table[14];
+				if(o.cellDates) { cell.t = 'd'; cell.w = SSF.format(cell.z, datenum(cell.v)); }
+				else { cell.t = 'n'; cell.v = datenum(cell.v); cell.w = SSF.format(cell.z, cell.v); }
 			}
+			else cell.t = 's';
 			if(dense) {
-				if(row[__C] && row[__C].z) cell.z = row[__C].z;
-				row[__C] = cell;
+				if(!ws[__R]) ws[__R] = [];
+				ws[__R][__C] = cell;
 			} else {
-				var cell_ref = encode_col(__C) + __Rstr/*:any*/;
-				if(ws[cell_ref] && ws[cell_ref].z) cell.z = ws[cell_ref].z;
+				var cell_ref = encode_cell(({c:__C,r:__R}/*:any*/));
 				ws[cell_ref] = cell;
 			}
 		}
--- a/bits/28_binstructs.js
+++ b/bits/28_binstructs.js
@ -1,8 +1,5 @@
-function parse_Int32LE(data) {
-	return data.read_shift(4, 'i');
-}
 function write_UInt32LE(x/*:number*/, o) {
-	if (!o) o = new_buf(4);
+	if(!o) o = new_buf(4);
 	o.write_shift(4, x);
 	return o;
 }
@ -13,24 +10,18 @@ function parse_XLWideString(data/*::, length*/)/*:string*/ {
 	return cchCharacters === 0 ? "" : data.read_shift(cchCharacters, 'dbcs');
 }
 function write_XLWideString(data/*:string*/, o) {
-	var _null = false; if (o == null) { _null = true; o = new_buf(4 + 2 * data.length); }
+	var _null = false; if(o == null) { _null = true; o = new_buf(4+2*data.length); }
 	o.write_shift(4, data.length);
-	if (data.length > 0) o.write_shift(0, data, 'dbcs');
+	if(data.length > 0) o.write_shift(0, data, 'dbcs');
 	return _null ? o.slice(0, o.l) : o;
 }

-/* [MS-XLSB] 2.5.91 */
-//function parse_LPWideString(data/*::, length*/)/*:string*/ {
-//	var cchCharacters = data.read_shift(2);
-//	return cchCharacters === 0 ? "" : data.read_shift(cchCharacters, "utf16le");
-//}
-
 /* [MS-XLSB] 2.5.143 */
 function parse_StrRun(data) {
 	return { ich: data.read_shift(2), ifnt: data.read_shift(2) };
 }
 function write_StrRun(run, o) {
-	if (!o) o = new_buf(4);
+	if(!o) o = new_buf(4);
 	o.write_shift(2, run.ich || 0);
 	o.write_shift(2, run.ifnt || 0);
 	return o;
@ -43,13 +34,13 @@ function parse_RichStr(data, length/*:number*/)/*:XLString*/ {
 	var str = parse_XLWideString(data);
 	var rgsStrRun = [];
 	var z = ({ t: str, h: str }/*:any*/);
-	if ((flags & 1) !== 0) { /* fRichStr */
+	if((flags & 1) !== 0) { /* fRichStr */
 		/* TODO: formatted string */
 		var dwSizeStrRun = data.read_shift(4);
-		for (var i = 0; i != dwSizeStrRun; ++i) rgsStrRun.push(parse_StrRun(data));
+		for(var i = 0; i != dwSizeStrRun; ++i) rgsStrRun.push(parse_StrRun(data));
 		z.r = rgsStrRun;
 	}
-	else z.r = [{ ich: 0, ifnt: 0 }];
+	else z.r = [{ich:0, ifnt:0}];
 	//if((flags & 2) !== 0) { /* fExtStr */
 	//	/* TODO: phonetic string */
 	//}
@ -58,8 +49,8 @@ function parse_RichStr(data, length/*:number*/)/*:XLString*/ {
 }
 function write_RichStr(str/*:XLString*/, o/*:?Block*/)/*:Block*/ {
 	/* TODO: formatted string */
-	var _null = false; if (o == null) { _null = true; o = new_buf(15 + 4 * str.t.length); }
-	o.write_shift(1, 0);
+	var _null = false; if(o == null) { _null = true; o = new_buf(15+4*str.t.length); }
+	o.write_shift(1,0);
 	write_XLWideString(str.t, o);
 	return _null ? o.slice(0, o.l) : o;
 }
@ -67,11 +58,11 @@ function write_RichStr(str/*:XLString*/, o/*:?Block*/)/*:Block*/ {
 var parse_BrtCommentText = parse_RichStr;
 function write_BrtCommentText(str/*:XLString*/, o/*:?Block*/)/*:Block*/ {
 	/* TODO: formatted string */
-	var _null = false; if (o == null) { _null = true; o = new_buf(23 + 4 * str.t.length); }
-	o.write_shift(1, 1);
+	var _null = false; if(o == null) { _null = true; o = new_buf(23+4*str.t.length); }
+	o.write_shift(1,1);
 	write_XLWideString(str.t, o);
-	o.write_shift(4, 1);
-	write_StrRun({ ich: 0, ifnt: 0 }, o);
+	o.write_shift(4,1);
+	write_StrRun({ich:0,ifnt:0}, o);
 	return _null ? o.slice(0, o.l) : o;
 }

@ -79,31 +70,18 @@ function write_BrtCommentText(str/*:XLString*/, o/*:?Block*/)/*:Block*/ {
 function parse_XLSBCell(data)/*:any*/ {
 	var col = data.read_shift(4);
 	var iStyleRef = data.read_shift(2);
-	iStyleRef += data.read_shift(1) << 16;
+	iStyleRef += data.read_shift(1) <<16;
 	data.l++; //var fPhShow = data.read_shift(1);
-	return { c: col, iStyleRef: iStyleRef };
+	return { c:col, iStyleRef: iStyleRef };
 }
 function write_XLSBCell(cell/*:any*/, o/*:?Block*/) {
-	if (o == null) o = new_buf(8);
+	if(o == null) o = new_buf(8);
 	o.write_shift(-4, cell.c);
 	o.write_shift(3, cell.iStyleRef || cell.s);
 	o.write_shift(1, 0); /* fPhShow */
 	return o;
 }

-/* Short XLSB Cell does not include column */
-function parse_XLSBShortCell(data)/*:any*/ {
-	var iStyleRef = data.read_shift(2);
-	iStyleRef += data.read_shift(1) <<16;
-	data.l++; //var fPhShow = data.read_shift(1);
-	return { c:-1, iStyleRef: iStyleRef };
-}
-function write_XLSBShortCell(cell/*:any*/, o/*:?Block*/) {
-	if(o == null) o = new_buf(4);
-	o.write_shift(3, cell.iStyleRef || cell.s);
-	o.write_shift(1, 0); /* fPhShow */
-	return o;
-}

 /* [MS-XLSB] 2.5.21 */
 var parse_XLSBCodeName = parse_XLWideString;
@ -115,9 +93,9 @@ function parse_XLNullableWideString(data/*::, length*/)/*:string*/ {
 	return cchCharacters === 0 || cchCharacters === 0xFFFFFFFF ? "" : data.read_shift(cchCharacters, 'dbcs');
 }
 function write_XLNullableWideString(data/*:string*/, o) {
-	var _null = false; if (o == null) { _null = true; o = new_buf(127); }
+	var _null = false; if(o == null) { _null = true; o = new_buf(127); }
 	o.write_shift(4, data.length > 0 ? data.length : 0xFFFFFFFF);
-	if (data.length > 0) o.write_shift(0, data, 'dbcs');
+	if(data.length > 0) o.write_shift(0, data, 'dbcs');
 	return _null ? o.slice(0, o.l) : o;
 }

@ -132,25 +110,26 @@ var write_RelID = write_XLNullableWideString;

 /* [MS-XLS] 2.5.217 ; [MS-XLSB] 2.5.122 */
 function parse_RkNumber(data)/*:number*/ {
-	var b = data.slice(data.l, data.l + 4);
+	var b = data.slice(data.l, data.l+4);
 	var fX100 = (b[0] & 1), fInt = (b[0] & 2);
-	data.l += 4;
-	var RK = fInt === 0 ? __double([0, 0, 0, 0, (b[0] & 0xFC), b[1], b[2], b[3]], 0) : __readInt32LE(b, 0) >> 2;
-	return fX100 ? (RK / 100) : RK;
+	data.l+=4;
+	b[0] &= 0xFC; // b[0] &= ~3;
+	var RK = fInt === 0 ? __double([0,0,0,0,b[0],b[1],b[2],b[3]],0) : __readInt32LE(b,0)>>2;
+	return fX100 ? (RK/100) : RK;
 }
 function write_RkNumber(data/*:number*/, o) {
-	if (o == null) o = new_buf(4);
+	if(o == null) o = new_buf(4);
 	var fX100 = 0, fInt = 0, d100 = data * 100;
-	if ((data == (data | 0)) && (data >= -(1 << 29)) && (data < (1 << 29))) { fInt = 1; }
-	else if ((d100 == (d100 | 0)) && (d100 >= -(1 << 29)) && (d100 < (1 << 29))) { fInt = 1; fX100 = 1; }
-	if (fInt) o.write_shift(-4, ((fX100 ? d100 : data) << 2) + (fX100 + 2));
+	if((data == (data | 0)) && (data >= -(1<<29)) && (data < (1 << 29))) { fInt = 1; }
+	else if((d100 == (d100 | 0)) && (d100 >= -(1<<29)) && (d100 < (1 << 29))) { fInt = 1; fX100 = 1; }
+	if(fInt) o.write_shift(-4, ((fX100 ? d100 : data) << 2) + (fX100 + 2));
 	else throw new Error("unsupported RkNumber " + data); // TODO
 }


 /* [MS-XLSB] 2.5.117 RfX */
 function parse_RfX(data /*::, length*/)/*:Range*/ {
-	var cell/*:Range*/ = ({ s: {}, e: {} }/*:any*/);
+	var cell/*:Range*/ = ({s: {}, e: {}}/*:any*/);
 	cell.s.r = data.read_shift(4);
 	cell.e.r = data.read_shift(4);
 	cell.s.c = data.read_shift(4);
@ -158,7 +137,7 @@ function parse_RfX(data /*::, length*/)/*:Range*/ {
 	return cell;
 }
 function write_RfX(r/*:Range*/, o) {
-	if (!o) o = new_buf(16);
+	if(!o) o = new_buf(16);
 	o.write_shift(4, r.s.r);
 	o.write_shift(4, r.e.r);
 	o.write_shift(4, r.s.c);
@ -170,34 +149,25 @@ function write_RfX(r/*:Range*/, o) {
 var parse_UncheckedRfX = parse_RfX;
 var write_UncheckedRfX = write_RfX;

-/* [MS-XLSB] 2.5.155 UncheckedSqRfX */
-//function parse_UncheckedSqRfX(data) {
-//	var cnt = data.read_shift(4);
-//	var out = [];
-//	for(var i = 0; i < cnt; ++i) {
-//		var rng = parse_UncheckedRfX(data);
-//		out.push(encode_range(rng));
-//	}
-//	return out.join(",");
-//}
-//function write_UncheckedSqRfX(sqrfx/*:string*/) {
-//	var parts = sqrfx.split(/\s*,\s*/);
-//	var o = new_buf(4); o.write_shift(4, parts.length);
-//	var out = [o];
-//	parts.forEach(function(rng) {
-//		out.push(write_UncheckedRfX(safe_decode_range(rng)));
-//	});
-//	return bconcat(out);
-//}
-
 /* [MS-XLS] 2.5.342 ; [MS-XLSB] 2.5.171 */
 /* TODO: error checking, NaN and Infinity values are not valid Xnum */
-function parse_Xnum(data/*::, length*/) {
-	if(data.length - data.l < 8) throw "XLS Xnum Buffer underflow";
-	return data.read_shift(8, 'f');
-}
+function parse_Xnum(data/*::, length*/) { return data.read_shift(8, 'f'); }
 function write_Xnum(data, o) { return (o || new_buf(8)).write_shift(8, data, 'f'); }

+/* [MS-XLSB] 2.5.97.2 */
+var BErr = {
+	/*::[*/0x00/*::]*/: "#NULL!",
+	/*::[*/0x07/*::]*/: "#DIV/0!",
+	/*::[*/0x0F/*::]*/: "#VALUE!",
+	/*::[*/0x17/*::]*/: "#REF!",
+	/*::[*/0x1D/*::]*/: "#NAME?",
+	/*::[*/0x24/*::]*/: "#NUM!",
+	/*::[*/0x2A/*::]*/: "#N/A",
+	/*::[*/0x2B/*::]*/: "#GETTING_DATA",
+	/*::[*/0xFF/*::]*/: "#WTF?"
+};
+var RBErr = evert_num(BErr);
+
 /* [MS-XLSB] 2.4.324 BrtColor */
 function parse_BrtColor(data/*::, length*/) {
 	var out = {};
@ -213,13 +183,13 @@ function parse_BrtColor(data/*::, length*/) {
 	var bB = data.read_shift(1);
 	data.l++; //var bAlpha = data.read_shift(1);

-	switch (xColorType) {
+	switch(xColorType) {
 		case 0: out.auto = 1; break;
 		case 1:
 			out.index = index;
 			var icv = XLSIcv[index];
 			/* automatic pseudo index 81 */
-			if (icv) out.rgb = rgb2Hex(icv);
+			if(icv) out.rgb = rgb2Hex(icv);
 			break;
 		case 2:
 			/* if(!fValidRGB) throw new Error("invalid"); */
@ -227,17 +197,17 @@ function parse_BrtColor(data/*::, length*/) {
 			break;
 		case 3: out.theme = index; break;
 	}
-	if (nTS != 0) out.tint = nTS > 0 ? nTS / 32767 : nTS / 32768;
+	if(nTS != 0) out.tint = nTS > 0 ? nTS / 32767 : nTS / 32768;

 	return out;
 }
 function write_BrtColor(color, o) {
-	if (!o) o = new_buf(8);
-	if (!color || color.auto) { o.write_shift(4, 0); o.write_shift(4, 0); return o; }
-	if (color.index != null) {
+	if(!o) o = new_buf(8);
+	if(!color||color.auto) { o.write_shift(4, 0); o.write_shift(4, 0); return o; }
+	if(color.index) {
 		o.write_shift(1, 0x02);
 		o.write_shift(1, color.index);
-	} else if (color.theme != null) {
+	} else if(color.theme) {
 		o.write_shift(1, 0x06);
 		o.write_shift(1, color.theme);
 	} else {
@ -245,19 +215,18 @@ function write_BrtColor(color, o) {
 		o.write_shift(1, 0);
 	}
 	var nTS = color.tint || 0;
-	if (nTS > 0) nTS *= 32767;
-	else if (nTS < 0) nTS *= 32768;
+	if(nTS > 0) nTS *= 32767;
+	else if(nTS < 0) nTS *= 32768;
 	o.write_shift(2, nTS);
-	if (!color.rgb || color.theme != null) {
+	if(!color.rgb) {
 		o.write_shift(2, 0);
 		o.write_shift(1, 0);
 		o.write_shift(1, 0);
 	} else {
 		var rgb = (color.rgb || 'FFFFFF');
-		if (typeof rgb == 'number') rgb = ("000000" + rgb.toString(16)).slice(-6);
-		o.write_shift(1, parseInt(rgb.slice(0, 2), 16));
-		o.write_shift(1, parseInt(rgb.slice(2, 4), 16));
-		o.write_shift(1, parseInt(rgb.slice(4, 6), 16));
+		o.write_shift(1, parseInt(rgb.slice(0,2),16));
+		o.write_shift(1, parseInt(rgb.slice(2,4),16));
+		o.write_shift(1, parseInt(rgb.slice(4,6),16));
 		o.write_shift(1, 0xFF);
 	}
 	return o;
@ -268,9 +237,9 @@ function parse_FontFlags(data/*::, length, opts*/) {
 	var d = data.read_shift(1);
 	data.l++;
 	var out = {
-		fBold: d & 0x01,
+		/* fBold: d & 0x01 */
 		fItalic: d & 0x02,
-		fUnderline: d & 0x04,
+		/* fUnderline: d & 0x04 */
 		fStrikeout: d & 0x08,
 		fOutline: d & 0x10,
 		fShadow: d & 0x20,
@ -280,14 +249,14 @@ function parse_FontFlags(data/*::, length, opts*/) {
 	return out;
 }
 function write_FontFlags(font, o) {
-	if (!o) o = new_buf(2);
+	if(!o) o = new_buf(2);
 	var grbit =
-		(font.italic ? 0x02 : 0) |
-		(font.strike ? 0x08 : 0) |
-		(font.outline ? 0x10 : 0) |
-		(font.shadow ? 0x20 : 0) |
+		(font.italic   ? 0x02 : 0) |
+		(font.strike   ? 0x08 : 0) |
+		(font.outline  ? 0x10 : 0) |
+		(font.shadow   ? 0x20 : 0) |
 		(font.condense ? 0x40 : 0) |
-		(font.extend ? 0x80 : 0);
+		(font.extend   ? 0x80 : 0);
 	o.write_shift(1, grbit);
 	o.write_shift(1, 0);
 	return o;
@ -296,13 +265,13 @@ function write_FontFlags(font, o) {
 /* [MS-OLEDS] 2.3.1 and 2.3.2 */
 function parse_ClipboardFormatOrString(o, w/*:number*/)/*:string*/ {
 	// $FlowIgnore
-	var ClipFmt = { 2: "BITMAP", 3: "METAFILEPICT", 8: "DIB", 14: "ENHMETAFILE" };
+	var ClipFmt = {2:"BITMAP",3:"METAFILEPICT",8:"DIB",14:"ENHMETAFILE"};
 	var m/*:number*/ = o.read_shift(4);
-	switch (m) {
+	switch(m) {
 		case 0x00000000: return "";
-		case 0xffffffff: case 0xfffffffe: return ClipFmt[o.read_shift(4)] || "";
+		case 0xffffffff: case 0xfffffffe: return ClipFmt[o.read_shift(4)]||"";
 	}
-	if (m > 0x190) throw new Error("Unsupported Clipboard: " + m.toString(16));
+	if(m > 0x190) throw new Error("Unsupported Clipboard: " + m.toString(16));
 	o.l -= 4;
 	return o.read_shift(0, w == 1 ? "lpstr" : "lpwstr");
 }
--- a/bits/29_xlsenum.js
+++ b/bits/29_xlsenum.js
@ -1,5 +1,4 @@
 /* [MS-OLEPS] 2.2 PropertyType */
-// Note: some tree shakers cannot handle VT_VECTOR | $CONST, hence extra vars
 //var VT_EMPTY    = 0x0000;
 //var VT_NULL     = 0x0001;
 var VT_I2       = 0x0002;
@ -21,7 +20,7 @@ var VT_UI4      = 0x0013;
 //var VT_UI8      = 0x0015;
 //var VT_INT      = 0x0016;
 //var VT_UINT     = 0x0017;
-//var VT_LPSTR    = 0x001E;
+var VT_LPSTR    = 0x001E;
 //var VT_LPWSTR   = 0x001F;
 var VT_FILETIME = 0x0040;
 var VT_BLOB     = 0x0041;
@ -33,9 +32,7 @@ var VT_BLOB     = 0x0041;
 var VT_CF       = 0x0047;
 //var VT_CLSID    = 0x0048;
 //var VT_VERSIONED_STREAM = 0x0049;
-//var VT_VECTOR   = 0x1000;
-var VT_VECTOR_VARIANT = 0x100C;
-var VT_VECTOR_LPSTR   = 0x101E;
+var VT_VECTOR   = 0x1000;
 //var VT_ARRAY    = 0x2000;

 var VT_STRING   = 0x0050; // 2.3.3.1.11 VtString
@ -55,8 +52,8 @@ var DocSummaryPIDDSI = {
 	/*::[*/0x09/*::]*/: { n: 'HiddenCount', t: VT_I4 },
 	/*::[*/0x0a/*::]*/: { n: 'MultimediaClipCount', t: VT_I4 },
 	/*::[*/0x0b/*::]*/: { n: 'ScaleCrop', t: VT_BOOL },
-	/*::[*/0x0c/*::]*/: { n: 'HeadingPairs', t: VT_VECTOR_VARIANT /* VT_VECTOR | VT_VARIANT */ },
-	/*::[*/0x0d/*::]*/: { n: 'TitlesOfParts', t: VT_VECTOR_LPSTR /* VT_VECTOR | VT_LPSTR */ },
+	/*::[*/0x0c/*::]*/: { n: 'HeadingPairs', t: VT_VECTOR | VT_VARIANT },
+	/*::[*/0x0d/*::]*/: { n: 'TitlesOfParts', t: VT_VECTOR | VT_LPSTR },
 	/*::[*/0x0e/*::]*/: { n: 'Manager', t: VT_STRING },
 	/*::[*/0x0f/*::]*/: { n: 'Company', t: VT_STRING },
 	/*::[*/0x10/*::]*/: { n: 'LinksUpToDate', t: VT_BOOL },
@ -69,11 +66,7 @@ var DocSummaryPIDDSI = {
 	/*::[*/0x1B/*::]*/: { n: 'ContentStatus', t: VT_STRING },
 	/*::[*/0x1C/*::]*/: { n: 'Language', t: VT_STRING },
 	/*::[*/0x1D/*::]*/: { n: 'Version', t: VT_STRING },
-	/*::[*/0xFF/*::]*/: {},
-	/* [MS-OLEPS] 2.18 */
-	/*::[*/0x80000000/*::]*/: { n: 'Locale', t: VT_UI4 },
-	/*::[*/0x80000003/*::]*/: { n: 'Behavior', t: VT_UI4 },
-	/*::[*/0x72627262/*::]*/: {}
+	/*::[*/0xFF/*::]*/: {}
 };

 /* [MS-OSHARED] 2.3.3.2.1.1 Summary Information Property Set PIDSI */
@ -97,13 +90,24 @@ var SummaryPIDSI = {
 	/*::[*/0x11/*::]*/: { n: 'Thumbnail', t: VT_CF },
 	/*::[*/0x12/*::]*/: { n: 'Application', t: VT_STRING },
 	/*::[*/0x13/*::]*/: { n: 'DocSecurity', t: VT_I4 },
-	/*::[*/0xFF/*::]*/: {},
-	/* [MS-OLEPS] 2.18 */
+	/*::[*/0xFF/*::]*/: {}
+};
+
+/* [MS-OLEPS] 2.18 */
+var SpecialProperties = {
 	/*::[*/0x80000000/*::]*/: { n: 'Locale', t: VT_UI4 },
 	/*::[*/0x80000003/*::]*/: { n: 'Behavior', t: VT_UI4 },
 	/*::[*/0x72627262/*::]*/: {}
 };

+(function() {
+	for(var y in SpecialProperties) if(SpecialProperties.hasOwnProperty(y))
+	DocSummaryPIDDSI[y] = SummaryPIDSI[y] = SpecialProperties[y];
+})();
+
+var DocSummaryRE = evert_key(DocSummaryPIDDSI, "n");
+var SummaryRE = evert_key(SummaryPIDSI, "n");
+
 /* [MS-XLS] 2.4.63 Country/Region codes */
 var CountryEnum = {
 	/*::[*/0x0001/*::]*/: "US", // United States
@ -181,11 +185,11 @@ var XLSFillPattern = [
 	'gray0625'
 ];

-function rgbify(arr/*:Array<number>*/)/*:Array<[number, number, number]>*/ { return arr.map(function(x) { return [(x>>16)&255,(x>>8)&255,x&255]; }); }
+function rgbify(arr) { return arr.map(function(x) { return [(x>>16)&255,(x>>8)&255,x&255]; }); }

 /* [MS-XLS] 2.5.161 */
 /* [MS-XLSB] 2.5.75 Icv */
-var _XLSIcv = /*#__PURE__*/ rgbify([
+var XLSIcv = rgbify([
 	/* Color Constants */
 	0x000000,
 	0xFFFFFF,
@ -258,8 +262,8 @@ var _XLSIcv = /*#__PURE__*/ rgbify([
 	0x333333,

 	/* Other entries to appease BIFF8/12 */
-	0x000000, /* 0x40 icvForeground ?? */
-	0xFFFFFF, /* 0x41 icvBackground ?? */
+	0xFFFFFF, /* 0x40 icvForeground ?? */
+	0x000000, /* 0x41 icvBackground ?? */
 	0x000000, /* 0x42 icvFrame ?? */
 	0x000000, /* 0x43 icv3D ?? */
 	0x000000, /* 0x44 icv3DText ?? */
@ -277,47 +281,4 @@ var _XLSIcv = /*#__PURE__*/ rgbify([
 	0x000000, /* 0x50 icvInfoBk ?? */
 	0x000000 /* 0x51 icvInfoText ?? */
 ]);
-var XLSIcv = /*#__PURE__*/dup(_XLSIcv);
-
-/* [MS-XLSB] 2.5.97.2 */
-var BErr = {
-	/*::[*/0x00/*::]*/: "#NULL!",
-	/*::[*/0x07/*::]*/: "#DIV/0!",
-	/*::[*/0x0F/*::]*/: "#VALUE!",
-	/*::[*/0x17/*::]*/: "#REF!",
-	/*::[*/0x1D/*::]*/: "#NAME?",
-	/*::[*/0x24/*::]*/: "#NUM!",
-	/*::[*/0x2A/*::]*/: "#N/A",
-	/*::[*/0x2B/*::]*/: "#GETTING_DATA",
-	/*::[*/0xFF/*::]*/: "#WTF?"
-};
-//var RBErr = evert_num(BErr);
-var RBErr = {
-	"#NULL!":        0x00,
-	"#DIV/0!":       0x07,
-	"#VALUE!":       0x0F,
-	"#REF!":         0x17,
-	"#NAME?":        0x1D,
-	"#NUM!":         0x24,
-	"#N/A":          0x2A,
-	"#GETTING_DATA": 0x2B,
-	"#WTF?":         0xFF
-};
-
-var XLSLblBuiltIn = [
-	"_xlnm.Consolidate_Area",
-	"_xlnm.Auto_Open",
-	"_xlnm.Auto_Close",
-	"_xlnm.Extract",
-	"_xlnm.Database",
-	"_xlnm.Criteria",
-	"_xlnm.Print_Area",
-	"_xlnm.Print_Titles",
-	"_xlnm.Recorder",
-	"_xlnm.Data_Form",
-	"_xlnm.Auto_Activate",
-	"_xlnm.Auto_Deactivate",
-	"_xlnm.Sheet_Title",
-	"_xlnm._FilterDatabase"
-];

--- a/bits/30_ctype.js
+++ b/bits/30_ctype.js
@ -5,38 +5,14 @@
 var ct2type/*{[string]:string}*/ = ({
 	/* Workbook */
 	"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml": "workbooks",
-	"application/vnd.ms-excel.sheet.macroEnabled.main+xml": "workbooks",
-	"application/vnd.ms-excel.sheet.binary.macroEnabled.main": "workbooks",
-	"application/vnd.ms-excel.addin.macroEnabled.main+xml": "workbooks",
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.template.main+xml": "workbooks",

 	/* Worksheet */
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml": "sheets",
-	"application/vnd.ms-excel.worksheet": "sheets",
 	"application/vnd.ms-excel.binIndexWs": "TODO", /* Binary Index */

-	/* Chartsheet */
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml": "charts",
-	"application/vnd.ms-excel.chartsheet": "charts",
-
 	/* Macrosheet */
-	"application/vnd.ms-excel.macrosheet+xml": "macros",
-	"application/vnd.ms-excel.macrosheet": "macros",
 	"application/vnd.ms-excel.intlmacrosheet": "TODO",
 	"application/vnd.ms-excel.binIndexMs": "TODO", /* Binary Index */

-	/* Dialogsheet */
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml": "dialogs",
-	"application/vnd.ms-excel.dialogsheet": "dialogs",
-
-	/* Shared Strings */
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml": "strs",
-	"application/vnd.ms-excel.sharedStrings": "strs",
-
-	/* Styles */
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml": "styles",
-	"application/vnd.ms-excel.styles": "styles",
-
 	/* File Properties */
 	"application/vnd.openxmlformats-package.core-properties+xml": "coreprops",
 	"application/vnd.openxmlformats-officedocument.custom-properties+xml": "custprops",
@ -46,32 +22,16 @@ var ct2type/*{[string]:string}*/ = ({
 	"application/vnd.openxmlformats-officedocument.customXmlProperties+xml": "TODO",
 	"application/vnd.openxmlformats-officedocument.spreadsheetml.customProperty": "TODO",

-	/* Comments */
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml": "comments",
-	"application/vnd.ms-excel.comments": "comments",
-	"application/vnd.ms-excel.threadedcomments+xml": "threadedcomments",
-	"application/vnd.ms-excel.person+xml": "people",
-
-	/* Metadata (Stock/Geography and Dynamic Array) */
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.sheetMetadata+xml": "metadata",
-	"application/vnd.ms-excel.sheetMetadata": "metadata",
-
 	/* PivotTable */
 	"application/vnd.ms-excel.pivotTable": "TODO",
 	"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotTable+xml": "TODO",

-	/* Chart Objects */
-	"application/vnd.openxmlformats-officedocument.drawingml.chart+xml": "TODO",
-
 	/* Chart Colors */
 	"application/vnd.ms-office.chartcolorstyle+xml": "TODO",

 	/* Chart Style */
 	"application/vnd.ms-office.chartstyle+xml": "TODO",

-	/* Chart Advanced */
-	"application/vnd.ms-office.chartex+xml": "TODO",
-
 	/* Calculation Chain */
 	"application/vnd.ms-excel.calcChain": "calcchains",
 	"application/vnd.openxmlformats-officedocument.spreadsheetml.calcChain+xml": "calcchains",
@ -94,6 +54,10 @@ var ct2type/*{[string]:string}*/ = ({
 	"application/vnd.ms-excel.externalLink": "links",
 	"application/vnd.openxmlformats-officedocument.spreadsheetml.externalLink+xml": "links",

+	/* Metadata */
+	"application/vnd.ms-excel.sheetMetadata": "TODO",
+	"application/vnd.openxmlformats-officedocument.spreadsheetml.sheetMetadata+xml": "TODO",
+
 	/* PivotCache */
 	"application/vnd.ms-excel.pivotCacheDefinition": "TODO",
 	"application/vnd.ms-excel.pivotCacheRecords": "TODO",
@ -141,7 +105,7 @@ var ct2type/*{[string]:string}*/ = ({

 	/* VBA */
 	"application/vnd.ms-office.vbaProject": "vba",
-	"application/vnd.ms-office.vbaProjectSignature": "TODO",
+	"application/vnd.ms-office.vbaProjectSignature": "vba",

 	/* Volatile Dependencies */
 	"application/vnd.ms-office.volatileDependencies": "TODO",
@ -158,6 +122,7 @@ var ct2type/*{[string]:string}*/ = ({

 	/* Drawing */
 	"application/vnd.openxmlformats-officedocument.drawing+xml": "drawings",
+	"application/vnd.openxmlformats-officedocument.drawingml.chart+xml": "TODO",
 	"application/vnd.openxmlformats-officedocument.drawingml.chartshapes+xml": "TODO",
 	"application/vnd.openxmlformats-officedocument.drawingml.diagramColors+xml": "TODO",
 	"application/vnd.openxmlformats-officedocument.drawingml.diagramData+xml": "TODO",
@ -176,54 +141,59 @@ var ct2type/*{[string]:string}*/ = ({
 	"sheet": "js"
 }/*:any*/);

-var CT_LIST = {
-	workbooks: {
-		xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml",
-		xlsm: "application/vnd.ms-excel.sheet.macroEnabled.main+xml",
-		xlsb: "application/vnd.ms-excel.sheet.binary.macroEnabled.main",
-		xlam: "application/vnd.ms-excel.addin.macroEnabled.main+xml",
-		xltx: "application/vnd.openxmlformats-officedocument.spreadsheetml.template.main+xml"
-	},
-	strs: { /* Shared Strings */
-		xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml",
-		xlsb: "application/vnd.ms-excel.sharedStrings"
-	},
-	comments: { /* Comments */
-		xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml",
-		xlsb: "application/vnd.ms-excel.comments"
-	},
-	sheets: { /* Worksheet */
-		xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml",
-		xlsb: "application/vnd.ms-excel.worksheet"
-	},
-	charts: { /* Chartsheet */
-		xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml",
-		xlsb: "application/vnd.ms-excel.chartsheet"
-	},
-	dialogs: { /* Dialogsheet */
-		xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml",
-		xlsb: "application/vnd.ms-excel.dialogsheet"
-	},
-	macros: { /* Macrosheet (Excel 4.0 Macros) */
-		xlsx: "application/vnd.ms-excel.macrosheet+xml",
-		xlsb: "application/vnd.ms-excel.macrosheet"
-	},
-	metadata: { /* Metadata (Stock/Geography and Dynamic Array) */
-		xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheetMetadata+xml",
-		xlsb: "application/vnd.ms-excel.sheetMetadata"
-	},
-	styles: { /* Styles */
-		xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml",
-		xlsb: "application/vnd.ms-excel.styles"
-	}
-};
+var CT_LIST = (function(){
+	var o = {
+		workbooks: {
+			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml",
+			xlsm: "application/vnd.ms-excel.sheet.macroEnabled.main+xml",
+			xlsb: "application/vnd.ms-excel.sheet.binary.macroEnabled.main",
+			xlam: "application/vnd.ms-excel.addin.macroEnabled.main+xml",
+			xltx: "application/vnd.openxmlformats-officedocument.spreadsheetml.template.main+xml"
+		},
+		strs: { /* Shared Strings */
+			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml",
+			xlsb: "application/vnd.ms-excel.sharedStrings"
+		},
+		comments: { /* Comments */
+			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml",
+			xlsb: "application/vnd.ms-excel.comments"
+		},
+		sheets: { /* Worksheet */
+			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml",
+			xlsb: "application/vnd.ms-excel.worksheet"
+		},
+		charts: { /* Chartsheet */
+			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml",
+			xlsb: "application/vnd.ms-excel.chartsheet"
+		},
+		dialogs: { /* Dialogsheet */
+			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml",
+			xlsb: "application/vnd.ms-excel.dialogsheet"
+		},
+		macros: { /* Macrosheet (Excel 4.0 Macros) */
+			xlsx: "application/vnd.ms-excel.macrosheet+xml",
+			xlsb: "application/vnd.ms-excel.macrosheet"
+		},
+		styles: { /* Styles */
+			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml",
+			xlsb: "application/vnd.ms-excel.styles"
+		}
+	};
+	keys(o).forEach(function(k) { ["xlsm", "xlam"].forEach(function(v) { if(!o[k][v]) o[k][v] = o[k].xlsx; }); });
+	keys(o).forEach(function(k){ keys(o[k]).forEach(function(v) { ct2type[o[k][v]] = k; }); });
+	return o;
+})();
+
+var type2ct/*{[string]:Array<string>}*/ = evert_arr(ct2type);
+
+XMLNS.CT = 'http://schemas.openxmlformats.org/package/2006/content-types';

 function new_ct()/*:any*/ {
 	return ({
 		workbooks:[], sheets:[], charts:[], dialogs:[], macros:[],
-		rels:[], strs:[], comments:[], threadedcomments:[], links:[],
+		rels:[], strs:[], comments:[], links:[],
 		coreprops:[], extprops:[], custprops:[], themes:[], styles:[],
-		calcchains:[], vba: [], drawings: [], metadata: [], people:[],
+		calcchains:[], vba: [], drawings: [],
 		TODO:[], xmlns: "" }/*:any*/);
 }

@ -236,7 +206,7 @@ function parse_ct(data/*:?string*/) {
 		switch(y[0].replace(nsregex,"<")) {
 			case '<?xml': break;
 			case '<Types': ct.xmlns = y['xmlns' + (y[0].match(/<(\w+):/)||["",""])[1] ]; break;
-			case '<Default': ctext[y.Extension.toLowerCase()] = y.ContentType; break;
+			case '<Default': ctext[y.Extension] = y.ContentType; break;
 			case '<Override':
 				if(ct[ct2type[y.ContentType]] !== undefined) ct[ct2type[y.ContentType]].push(y.PartName);
 				break;
@ -251,60 +221,52 @@ function parse_ct(data/*:?string*/) {
 	return ct;
 }

-function write_ct(ct, opts, raw)/*:string*/ {
-	var type2ct/*{[string]:Array<string>}*/ = evert_arr(ct2type);
+var CTYPE_XML_ROOT = writextag('Types', null, {
+	'xmlns': XMLNS.CT,
+	'xmlns:xsd': XMLNS.xsd,
+	'xmlns:xsi': XMLNS.xsi
+});

+var CTYPE_DEFAULTS = [
+	['xml', 'application/xml'],
+	['bin', 'application/vnd.ms-excel.sheet.binary.macroEnabled.main'],
+	['vml', 'application/vnd.openxmlformats-officedocument.vmlDrawing'],
+	/* from test files */
+	['bmp', 'image/bmp'],
+	['png', 'image/png'],
+	['gif', 'image/gif'],
+	['emf', 'image/x-emf'],
+	['wmf', 'image/x-wmf'],
+	['jpg', 'image/jpeg'], ['jpeg', 'image/jpeg'],
+	['tif', 'image/tiff'], ['tiff', 'image/tiff'],
+	['pdf', 'application/pdf'],
+	['rels', type2ct.rels[0]]
+].map(function(x) {
+	return writextag('Default', null, {'Extension':x[0], 'ContentType': x[1]});
+});
+
+function write_ct(ct, opts)/*:string*/ {
 	var o/*:Array<string>*/ = [], v;
-
-	if(!raw) {
-		o[o.length] = (XML_HEADER);
-		o[o.length] = writextag('Types', null, {
-			'xmlns': XMLNS.CT,
-			'xmlns:xsd': XMLNS.xsd,
-			'xmlns:xsi': XMLNS.xsi
-		});
-		o = o.concat([
-			['xml', 'application/xml'],
-			['bin', 'application/vnd.ms-excel.sheet.binary.macroEnabled.main'],
-			['vml', 'application/vnd.openxmlformats-officedocument.vmlDrawing'],
-			['data', 'application/vnd.openxmlformats-officedocument.model+data'],
-			/* from test files */
-			['bmp', 'image/bmp'],
-			['png', 'image/png'],
-			['gif', 'image/gif'],
-			['emf', 'image/x-emf'],
-			['wmf', 'image/x-wmf'],
-			['jpg', 'image/jpeg'], ['jpeg', 'image/jpeg'],
-			['tif', 'image/tiff'], ['tiff', 'image/tiff'],
-			['pdf', 'application/pdf'],
-			['rels', 'application/vnd.openxmlformats-package.relationships+xml']
-		].map(function(x) {
-			return writextag('Default', null, {'Extension':x[0], 'ContentType': x[1]});
-		}));
-	}
-
-	/* only write first instance */
+	o[o.length] = (XML_HEADER);
+	o[o.length] = (CTYPE_XML_ROOT);
+	o = o.concat(CTYPE_DEFAULTS);
 	var f1 = function(w) {
 		if(ct[w] && ct[w].length > 0) {
 			v = ct[w][0];
 			o[o.length] = (writextag('Override', null, {
 				'PartName': (v[0] == '/' ? "":"/") + v,
-				'ContentType': CT_LIST[w][opts.bookType] || CT_LIST[w]['xlsx']
+				'ContentType': CT_LIST[w][opts.bookType || 'xlsx']
 			}));
 		}
 	};
-
-	/* book type-specific */
 	var f2 = function(w) {
 		(ct[w]||[]).forEach(function(v) {
 			o[o.length] = (writextag('Override', null, {
 				'PartName': (v[0] == '/' ? "":"/") + v,
-				'ContentType': CT_LIST[w][opts.bookType] || CT_LIST[w]['xlsx']
+				'ContentType': CT_LIST[w][opts.bookType || 'xlsx']
 			}));
 		});
 	};
-
-	/* standard type */
 	var f3 = function(t) {
 		(ct[t]||[]).forEach(function(v) {
 			o[o.length] = (writextag('Override', null, {
@ -313,7 +275,6 @@ function write_ct(ct, opts, raw)/*:string*/ {
 			}));
 		});
 	};
-
 	f1('workbooks');
 	f2('sheets');
 	f2('charts');
@ -322,10 +283,7 @@ function write_ct(ct, opts, raw)/*:string*/ {
 	['coreprops', 'extprops', 'custprops'].forEach(f3);
 	f3('vba');
 	f3('comments');
-	f3('threadedcomments');
 	f3('drawings');
-	f2('metadata');
-	f3('people');
-	if(!raw && o.length>2){ o[o.length] = ('</Types>'); o[1]=o[1].replace("/>",">"); }
+	if(o.length>2){ o[o.length] = ('</Types>'); o[1]=o[1].replace("/>",">"); }
 	return o.join("");
 }
--- a/bits/31_rels.js
+++ b/bits/31_rels.js
@ -4,33 +4,6 @@ var RELS = ({
 	SHEET: "http://sheetjs.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
 	HLINK: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink",
 	VML: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing",
-	XPATH: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/externalLinkPath",
-	XMISS: "http://schemas.microsoft.com/office/2006/relationships/xlExternalLinkPath/xlPathMissing",
-	XLINK: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/externalLink",
-	CXML: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/customXml",
-	CXMLP: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/customXmlProps",
-	CMNT: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/comments",
-	CORE_PROPS: "http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties",
-	EXT_PROPS: 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties',
-	CUST_PROPS: 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/custom-properties',
-	SST: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings",
-	STY: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles",
-	THEME: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme",
-	CHART: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chart",
-	CHARTEX: "http://schemas.microsoft.com/office/2014/relationships/chartEx",
-	CS: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chartsheet",
-	WS: [
-		"http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet",
-		"http://purl.oclc.org/ooxml/officeDocument/relationships/worksheet"
-	],
-	DS: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/dialogsheet",
-	MS: "http://schemas.microsoft.com/office/2006/relationships/xlMacrosheet",
-	IMG: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image",
-	DRAW: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/drawing",
-	XLMETA: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sheetMetadata",
-	TCMNT: "http://schemas.microsoft.com/office/2017/10/relationships/threadedComment",
-	PEOPLE: "http://schemas.microsoft.com/office/2017/10/relationships/person",
-	CONN: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/connections",
 	VBA: "http://schemas.microsoft.com/office/2006/relationships/vbaProject"
 }/*:any*/);

@ -41,18 +14,18 @@ function get_rels_path(file/*:string*/)/*:string*/ {
 }

 function parse_rels(data/*:?string*/, currentFilePath/*:string*/) {
-	var rels = {"!id":{}};
-	if (!data) return rels;
+	if (!data) return data;
 	if (currentFilePath.charAt(0) !== '/') {
 		currentFilePath = '/'+currentFilePath;
 	}
+	var rels = {};
 	var hash = {};

 	(data.match(tagregex)||[]).forEach(function(x) {
 		var y = parsexmltag(x);
 		/* 9.3.2.2 OPC_Relationships */
 		if (y[0] === '<Relationship') {
-			var rel = {}; rel.Type = y.Type; rel.Target = y.Target; rel.Id = y.Id; if(y.TargetMode) rel.TargetMode = y.TargetMode;
+			var rel = {}; rel.Type = y.Type; rel.Target = y.Target; rel.Id = y.Id; rel.TargetMode = y.TargetMode;
 			var canonictarget = y.TargetMode === 'External' ? y.Target : resolve_path(y.Target, currentFilePath);
 			rels[canonictarget] = rel;
 			hash[y.Id] = rel;
@ -62,13 +35,16 @@ function parse_rels(data/*:?string*/, currentFilePath/*:string*/) {
 	return rels;
 }

+XMLNS.RELS = 'http://schemas.openxmlformats.org/package/2006/relationships';
+
+var RELS_ROOT = writextag('Relationships', null, {
+	//'xmlns:ns0': XMLNS.RELS,
+	'xmlns': XMLNS.RELS
+});

 /* TODO */
 function write_rels(rels)/*:string*/ {
-	var o = [XML_HEADER, writextag('Relationships', null, {
-		//'xmlns:ns0': XMLNS.RELS,
-		'xmlns': XMLNS.RELS
-	})];
+	var o = [XML_HEADER, RELS_ROOT];
 	keys(rels['!id']).forEach(function(rid) {
 		o[o.length] = (writextag('Relationship', null, rels['!id'][rid]));
 	});
@ -76,17 +52,14 @@ function write_rels(rels)/*:string*/ {
 	return o.join("");
 }

-function add_rels(rels, rId/*:number*/, f, type, relobj, targetmode/*:?string*/)/*:number*/ {
+function add_rels(rels, rId, f, type, relobj)/*:number*/ {
 	if(!relobj) relobj = {};
 	if(!rels['!id']) rels['!id'] = {};
-	if(!rels['!idx']) rels['!idx'] = 1;
-	if(rId < 0) for(rId = rels['!idx']; rels['!id']['rId' + rId]; ++rId){/* empty */}
-	rels['!idx'] = rId + 1;
+	if(rId < 0) for(rId = 1; rels['!id']['rId' + rId]; ++rId){/* empty */}
 	relobj.Id = 'rId' + rId;
 	relobj.Type = type;
 	relobj.Target = f;
-	if(targetmode) relobj.TargetMode = targetmode;
-	else if([RELS.HLINK, RELS.XPATH, RELS.XMISS].indexOf(relobj.Type) > -1) relobj.TargetMode = "External";
+	if(relobj.Type == RELS.HLINK) relobj.TargetMode = "External";
 	if(rels['!id'][relobj.Id]) throw new Error("Cannot rewrite rId " + rId);
 	rels['!id'][relobj.Id] = relobj;
 	rels[('/' + relobj.Target).replace("//","/")] = relobj;
--- a/bits/32_odmanrdf.js
+++ b/bits/32_odmanrdf.js
@ -56,7 +56,10 @@ function write_rdf(rdf) {
 	return o.join("");
 }
 /* TODO: pull properties */
-function write_meta_ods(/*:: wb: Workbook, opts: any*/)/*:string*/ {
-	return '<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>Sheet' + 'JS ' + XLSX.version + '</meta:generator></office:meta></office:document-meta>';
-}
+var write_meta_ods/*:{(wb:Workbook, opts:any):string}*/ = (function() {
+	var payload = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?><office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>Sheet' + 'JS ' + XLSX.version + '</meta:generator></office:meta></office:document-meta>';
+	return function wmo(/*:: wb: Workbook, opts: any*/)/*:string*/ {
+		return payload;
+	};
+})();

--- a/bits/33_coreprops.js
+++ b/bits/33_coreprops.js
@ -18,7 +18,10 @@ var CORE_PROPS/*:Array<Array<string> >*/ = [
 	["dcterms:modified", "ModifiedDate", 'date']
 ];

-var CORE_PROPS_REGEX/*:Array<RegExp>*/ = /*#__PURE__*/(function() {
+XMLNS.CORE_PROPS = "http://schemas.openxmlformats.org/package/2006/metadata/core-properties";
+RELS.CORE_PROPS  = 'http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties';
+
+var CORE_PROPS_REGEX/*:Array<RegExp>*/ = (function() {
 	var r = new Array(CORE_PROPS.length);
 	for(var i = 0; i < CORE_PROPS.length; ++i) {
 		var f = CORE_PROPS[i];
@ -34,30 +37,31 @@ function parse_core_props(data) {

 	for(var i = 0; i < CORE_PROPS.length; ++i) {
 		var f = CORE_PROPS[i], cur = data.match(CORE_PROPS_REGEX[i]);
-		if(cur != null && cur.length > 0) p[f[1]] = unescapexml(cur[1]);
+		if(cur != null && cur.length > 0) p[f[1]] = cur[1];
 		if(f[2] === 'date' && p[f[1]]) p[f[1]] = parseDate(p[f[1]]);
 	}

 	return p;
 }

+var CORE_PROPS_XML_ROOT = writextag('cp:coreProperties', null, {
+	//'xmlns': XMLNS.CORE_PROPS,
+	'xmlns:cp': XMLNS.CORE_PROPS,
+	'xmlns:dc': XMLNS.dc,
+	'xmlns:dcterms': XMLNS.dcterms,
+	'xmlns:dcmitype': XMLNS.dcmitype,
+	'xmlns:xsi': XMLNS.xsi
+});
+
 function cp_doit(f, g, h, o, p) {
 	if(p[f] != null || g == null || g === "") return;
 	p[f] = g;
-	g = escapexml(g);
 	o[o.length] = (h ? writextag(f,g,h) : writetag(f,g));
 }

 function write_core_props(cp, _opts) {
 	var opts = _opts || {};
-	var o = [XML_HEADER, writextag('cp:coreProperties', null, {
-		//'xmlns': XMLNS.CORE_PROPS,
-		'xmlns:cp': XMLNS.CORE_PROPS,
-		'xmlns:dc': XMLNS.dc,
-		'xmlns:dcterms': XMLNS.dcterms,
-		'xmlns:dcmitype': XMLNS.dcmitype,
-		'xmlns:xsi': XMLNS.xsi
-	})], p = {};
+	var o = [XML_HEADER, CORE_PROPS_XML_ROOT], p = {};
 	if(!cp && !opts.Props) return o.join("");

 	if(cp) {
--- a/bits/34_extprops.js
+++ b/bits/34_extprops.js
@ -14,6 +14,9 @@ var EXT_PROPS/*:Array<Array<string> >*/ = [
 	["TitlesOfParts", "TitlesOfParts", "raw"]
 ];

+XMLNS.EXT_PROPS = "http://schemas.openxmlformats.org/officeDocument/2006/extended-properties";
+RELS.EXT_PROPS  = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties';
+
 var PseudoPropsPairs = [
 	"Worksheets",  "SheetNames",
 	"NamedRanges", "DefinedNames",
@ -41,14 +44,12 @@ function load_props_pairs(HP/*:string|Array<Array<any>>*/, TOP, props, opts) {
 			case "Folhas de cálculo":
 			case "Planilhas":
 			case "Regneark":
-			case "Hojas de cálculo":
 			case "Werkbladen":
 				props.Worksheets = len;
 				props.SheetNames = parts.slice(idx, idx + len);
 				break;

 			case "Named Ranges":
-			case "Rangos con nombre":
 			case "名前付き一覧":
 			case "Benannte Bereiche":
 			case "Navngivne områder":
@ -71,10 +72,9 @@ function parse_ext_props(data, p, opts) {
 	data = utf8read(data);

 	EXT_PROPS.forEach(function(f) {
-		var xml = (data.match(matchtag(f[0]))||[])[1];
 		switch(f[2]) {
-			case "string": if(xml) p[f[1]] = unescapexml(xml); break;
-			case "bool": p[f[1]] = xml === "true"; break;
+			case "string": p[f[1]] = (data.match(matchtag(f[0]))||[])[1]; break;
+			case "bool": p[f[1]] = (data.match(matchtag(f[0]))||[])[1] === "true"; break;
 			case "raw":
 				var cur = data.match(new RegExp("<" + f[0] + "[^>]*>([\\s\\S]*?)<\/" + f[0] + ">"));
 				if(cur && cur.length > 0) q[f[1]] = cur[1];
@ -87,21 +87,23 @@ function parse_ext_props(data, p, opts) {
 	return p;
 }

+var EXT_PROPS_XML_ROOT = writextag('Properties', null, {
+	'xmlns': XMLNS.EXT_PROPS,
+	'xmlns:vt': XMLNS.vt
+});
+
 function write_ext_props(cp/*::, opts*/)/*:string*/ {
 	var o/*:Array<string>*/ = [], W = writextag;
 	if(!cp) cp = {};
 	cp.Application = "SheetJS";
 	o[o.length] = (XML_HEADER);
-	o[o.length] = (writextag('Properties', null, {
-		'xmlns': XMLNS.EXT_PROPS,
-		'xmlns:vt': XMLNS.vt
-	}));
+	o[o.length] = (EXT_PROPS_XML_ROOT);

 	EXT_PROPS.forEach(function(f) {
 		if(cp[f[1]] === undefined) return;
 		var v;
 		switch(f[2]) {
-			case 'string': v = escapexml(String(cp[f[1]])); break;
+			case 'string': v = String(cp[f[1]]); break;
 			case 'bool': v = cp[f[1]] ? 'true' : 'false'; break;
 		}
 		if(v !== undefined) o[o.length] = (W(f[0], v));
--- a/bits/35_custprops.js
+++ b/bits/35_custprops.js
@ -1,14 +1,17 @@
 /* 15.2.12.2 Custom File Properties Part */
+XMLNS.CUST_PROPS = "http://schemas.openxmlformats.org/officeDocument/2006/custom-properties";
+RELS.CUST_PROPS  = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/custom-properties';
+
 var custregex = /<[^>]+>[^<]*/g;
 function parse_cust_props(data/*:string*/, opts) {
 	var p = {}, name = "";
 	var m = data.match(custregex);
 	if(m) for(var i = 0; i != m.length; ++i) {
 		var x = m[i], y = parsexmltag(x);
-		switch(strip_ns(y[0])) {
+		switch(y[0]) {
 			case '<?xml': break;
 			case '<Properties': break;
-			case '<property': name = unescapexml(y.name); break;
+			case '<property': name = y.name; break;
 			case '</property>': name = null; break;
 			default: if (x.indexOf('<vt:') === 0) {
 				var toks = x.split('>');
@ -44,18 +47,20 @@ function parse_cust_props(data/*:string*/, opts) {
 	return p;
 }

+var CUST_PROPS_XML_ROOT = writextag('Properties', null, {
+	'xmlns': XMLNS.CUST_PROPS,
+	'xmlns:vt': XMLNS.vt
+});
+
 function write_cust_props(cp/*::, opts*/)/*:string*/ {
-	var o = [XML_HEADER, writextag('Properties', null, {
-		'xmlns': XMLNS.CUST_PROPS,
-		'xmlns:vt': XMLNS.vt
-	})];
+	var o = [XML_HEADER, CUST_PROPS_XML_ROOT];
 	if(!cp) return o.join("");
 	var pid = 1;
 	keys(cp).forEach(function custprop(k) { ++pid;
-		o[o.length] = (writextag('property', write_vt(cp[k], true), {
+		o[o.length] = (writextag('property', write_vt(cp[k]), {
 			'fmtid': '{D5CDD505-2E9C-101B-9397-08002B2CF9AE}',
 			'pid': pid,
-			'name': escapexml(k)
+			'name': k
 		}));
 	});
 	if(o.length>2){ o[o.length] = '</Properties>'; o[1]=o[1].replace("/>",">"); }
--- a/bits/36_xlsprops.js
+++ b/bits/36_xlsprops.js
@ -31,10 +31,9 @@ var XLMLDocPropsMap = {
 	Identifier: 'Identifier', /* NOTE: missing from schema */
 	Language: 'Language' /* NOTE: missing from schema */
 };
-var evert_XLMLDPM;
+var evert_XLMLDPM = evert(XLMLDocPropsMap);

 function xlml_set_prop(Props, tag/*:string*/, val) {
-	if(!evert_XLMLDPM) evert_XLMLDPM = evert(XLMLDocPropsMap);
 	tag = evert_XLMLDPM[tag] || tag;
 	Props[tag] = val;
 }
@ -64,7 +63,7 @@ function xlml_write_custprops(Props, Custprops/*::, opts*/) {
 	var o/*:Array<string>*/ = [];
 	if(Props) keys(Props).forEach(function(k) {
 		/*:: if(!Props) return; */
-		if(!Object.prototype.hasOwnProperty.call(Props, k)) return;
+		if(!Props.hasOwnProperty(k)) return;
 		for(var i = 0; i < CORE_PROPS.length; ++i) if(k == CORE_PROPS[i][1]) return;
 		for(i = 0; i < EXT_PROPS.length; ++i) if(k == EXT_PROPS[i][1]) return;
 		for(i = 0; i < BLACKLIST.length; ++i) if(k == BLACKLIST[i]) return;
@ -78,8 +77,8 @@ function xlml_write_custprops(Props, Custprops/*::, opts*/) {
 	});
 	if(Custprops) keys(Custprops).forEach(function(k) {
 		/*:: if(!Custprops) return; */
-		if(!Object.prototype.hasOwnProperty.call(Custprops, k)) return;
-		if(Props && Object.prototype.hasOwnProperty.call(Props, k)) return;
+		if(!Custprops.hasOwnProperty(k)) return;
+		if(Props && Props.hasOwnProperty(k)) return;
 		var m = Custprops[k];
 		var t = "string";
 		if(typeof m == 'number') { t = "float"; m = String(m); }
--- a/bits/38_xlstypes.js
+++ b/bits/38_xlstypes.js
@ -41,18 +41,6 @@ function parse_VtStringBase(blob, stringType, pad) {
 function parse_VtString(blob, t/*:number*/, pad/*:?boolean*/) { return parse_VtStringBase(blob, t, pad === false ? 0: 4); }
 function parse_VtUnalignedString(blob, t/*:number*/) { if(!t) throw new Error("VtUnalignedString must have positive length"); return parse_VtStringBase(blob, t, 0); }

-/* [MS-OSHARED] 2.3.3.1.7 VtVecLpwstrValue */
-function parse_VtVecLpwstrValue(blob)/*:Array<string>*/ {
-	var length = blob.read_shift(4);
-	var ret/*:Array<string>*/ = [];
-	for(var i = 0; i != length; ++i) {
-		var start = blob.l;
-		ret[i] = blob.read_shift(0, 'lpwstr').replace(chr0,'');
-		if((blob.l - start) & 0x02) blob.l += 2;
-	}
-	return ret;
-}
-
 /* [MS-OSHARED] 2.3.3.1.9 VtVecUnalignedLpstrValue */
 function parse_VtVecUnalignedLpstrValue(blob)/*:Array<string>*/ {
 	var length = blob.read_shift(4);
@ -61,12 +49,14 @@ function parse_VtVecUnalignedLpstrValue(blob)/*:Array<string>*/ {
 	return ret;
 }

+/* [MS-OSHARED] 2.3.3.1.10 VtVecUnalignedLpstr */
+function parse_VtVecUnalignedLpstr(blob)/*:Array<string>*/ {
+	return parse_VtVecUnalignedLpstrValue(blob);
+}

 /* [MS-OSHARED] 2.3.3.1.13 VtHeadingPair */
 function parse_VtHeadingPair(blob) {
-	var start = blob.l;
 	var headingString = parse_TypedPropertyValue(blob, VT_USTR);
-	if(blob[blob.l] == 0x00 && blob[blob.l+1] == 0x00 && ((blob.l - start) & 0x02)) blob.l += 2;
 	var headerParts = parse_TypedPropertyValue(blob, VT_I4);
 	return [headingString, headerParts];
 }
@ -75,10 +65,16 @@ function parse_VtHeadingPair(blob) {
 function parse_VtVecHeadingPairValue(blob) {
 	var cElements = blob.read_shift(4);
 	var out = [];
-	for(var i = 0; i < cElements / 2; ++i) out.push(parse_VtHeadingPair(blob));
+	for(var i = 0; i != cElements / 2; ++i) out.push(parse_VtHeadingPair(blob));
 	return out;
 }

+/* [MS-OSHARED] 2.3.3.1.15 VtVecHeadingPair */
+function parse_VtVecHeadingPair(blob) {
+	// NOTE: When invoked, wType & padding were already consumed
+	return parse_VtVecHeadingPairValue(blob);
+}
+
 /* [MS-OLEPS] 2.18.1 Dictionary (uses 2.17, 2.16) */
 function parse_dictionary(blob,CodePage) {
 	var cnt = blob.read_shift(4);
@ -117,7 +113,7 @@ function parse_TypedPropertyValue(blob, type/*:number*/, _opts)/*:any*/ {
 	var t = blob.read_shift(2), ret, opts = _opts||{};
 	blob.l += 2;
 	if(type !== VT_VARIANT)
-	if(t !== type && VT_CUSTOM.indexOf(type)===-1 && !((type & 0xFFFE) == 0x101E && (t & 0xFFFE) == 0x101E)) throw new Error('Expected type ' + type + ' saw ' + t);
+	if(t !== type && VT_CUSTOM.indexOf(type)===-1) throw new Error('Expected type ' + type + ' saw ' + t);
 	switch(type === VT_VARIANT ? t : type) {
 		case 0x02 /*VT_I2*/: ret = blob.read_shift(2, 'i'); if(!opts.raw) blob.l += 2; return ret;
 		case 0x03 /*VT_I4*/: ret = blob.read_shift(4, 'i'); return ret;
@ -130,10 +126,8 @@ function parse_TypedPropertyValue(blob, type/*:number*/, _opts)/*:any*/ {
 		case 0x47 /*VT_CF*/: return parse_ClipboardData(blob);
 		case 0x50 /*VT_STRING*/: return parse_VtString(blob, t, !opts.raw).replace(chr0,'');
 		case 0x51 /*VT_USTR*/: return parse_VtUnalignedString(blob, t/*, 4*/).replace(chr0,'');
-		case 0x100C /*VT_VECTOR|VT_VARIANT*/: return parse_VtVecHeadingPairValue(blob);
-		case 0x101E /*VT_VECTOR|VT_LPSTR*/:
-		case 0x101F /*VT_VECTOR|VT_LPWSTR*/:
-			return t == 0x101F ? parse_VtVecLpwstrValue(blob) : parse_VtVecUnalignedLpstrValue(blob);
+		case 0x100C /*VT_VECTOR|VT_VARIANT*/: return parse_VtVecHeadingPair(blob);
+		case 0x101E /*VT_LPSTR*/: return parse_VtVecUnalignedLpstr(blob);
 		default: throw new Error("TypedPropertyValue unrecognized type " + type + " " + t);
 	}
 }
@ -144,10 +138,9 @@ function write_TypedPropertyValue(type/*:number*/, value) {
 		case 0x03 /*VT_I4*/: p.write_shift(-4, value); break;
 		case 0x05 /*VT_I4*/: p = new_buf(8); p.write_shift(8, value, 'f'); break;
 		case 0x0B /*VT_BOOL*/: p.write_shift(4, value ? 0x01 : 0x00); break;
-		case 0x40 /*VT_FILETIME*/: /*:: if(typeof value !== "string" && !(value instanceof Date)) throw "unreachable"; */ p = write_FILETIME(value); break;
+		case 0x40 /*VT_FILETIME*/: p = write_FILETIME(value); break;
 		case 0x1F /*VT_LPWSTR*/:
 		case 0x50 /*VT_STRING*/:
-			/*:: if(typeof value !== "string") throw "unreachable"; */
 			p = new_buf(4 + 2 * (value.length + 1) + (value.length % 2 ? 0 : 2));
 			p.write_shift(4, value.length + 1);
 			p.write_shift(0, value, "dbcs");
@ -185,7 +178,6 @@ function parse_PropertySet(blob, PIDSI) {
 			if(fail) throw new Error("Read Error: Expected address " + Props[i][1] + ' at ' + blob.l + ' :' + i);
 		}
 		if(PIDSI) {
-			if(Props[i][0] == 0 && Props.length > i+1 && Props[i][1] == Props[i+1][1]) continue; // R9
 			var piddsi = PIDSI[Props[i][0]];
 			PropH[piddsi.n] = parse_TypedPropertyValue(blob, piddsi.t, {raw:true});
 			if(piddsi.p === 'version') PropH[piddsi.n] = String(PropH[piddsi.n] >> 16) + "." + ("0000" + String(PropH[piddsi.n] & 0xFFFF)).slice(-4);
@ -249,7 +241,7 @@ function parse_PropertySet(blob, PIDSI) {
 	blob.l = start_addr + size; /* step ahead to skip padding */
 	return PropH;
 }
-var XLSPSSkip = [ "CodePage", "Thumbnail", "_PID_LINKBASE", "_PID_HLINKS", "SystemIdentifier", "FMTID" ];
+var XLSPSSkip = [ "CodePage", "Thumbnail", "_PID_LINKBASE", "_PID_HLINKS", "SystemIdentifier", "FMTID" ].concat(PseudoPropsPairs);
 function guess_property_type(val/*:any*/)/*:number*/ {
 	switch(typeof val) {
 		case "boolean": return 0x0B;
@ -293,18 +285,14 @@ function write_PropertySet(entries, RE, PIDSI) {

 	for(i = 0; i < entries.length; ++i) {
 		if(RE && !RE[entries[i][0]]) continue;
-		if(XLSPSSkip.indexOf(entries[i][0]) > -1 || PseudoPropsPairs.indexOf(entries[i][0]) > -1) continue;
+		if(XLSPSSkip.indexOf(entries[i][0]) > -1) continue;
 		if(entries[i][1] == null) continue;

 		var val = entries[i][1], idx = 0;
 		if(RE) {
 			idx = +RE[entries[i][0]];
-			var pinfo = (PIDSI/*:: || {}*/)[idx]/*:: || {} */;
-			if(pinfo.p == "version" && typeof val == "string") {
-				/*:: if(typeof val !== "string") throw "unreachable"; */
-				var arr = val.split(".");
-				val = ((+arr[0])<<16) + ((+arr[1])||0);
-			}
+			var pinfo = PIDSI[idx];
+			if(pinfo.p == "version" && typeof val == "string") val = (+((val = val.split("."))[0])<<16) + (+val[1]||0);
 			pr = write_TypedPropertyValue(pinfo.t, val);
 		} else {
 			var T = guess_property_type(val);
@ -362,7 +350,7 @@ function parse_PropertySetStream(file, PIDSI, clsid) {
 	rval.FMTID = [FMTID0, FMTID1]; // TODO: verify FMTID0/1
 	return rval;
 }
-function write_PropertySetStream(entries, clsid, RE, PIDSI/*:{[key:string|number]:any}*/, entries2/*:?any*/, clsid2/*:?any*/) {
+function write_PropertySetStream(entries, clsid, RE, PIDSI, entries2/*:?any*/, clsid2/*:?any*/) {
 	var hdr = new_buf(entries2 ? 68 : 48);
 	var bufs = [hdr];
 	hdr.write_shift(2, 0xFFFE);
@ -410,7 +398,7 @@ function parse_Bes(blob/*::, length*/) {
 }
 function write_Bes(v, t/*:string*/, o) {
 	if(!o) o = new_buf(2);
-	o.write_shift(1, ((t == 'e') ? +v : +!!v));
+	o.write_shift(1, +v);
 	o.write_shift(1, ((t == 'e') ? 1 : 0));
 	return o;
 }
@ -453,21 +441,6 @@ function parse_XLUnicodeRichExtendedString(blob) {
 	current_codepage = cp;
 	return z;
 }
-function write_XLUnicodeRichExtendedString(xlstr/*:: :XLString, opts*/) {
-	var str = (xlstr.t||""), nfmts = 1;
-
-	var hdr = new_buf(3 + (nfmts > 1 ? 2 : 0));
-	hdr.write_shift(2, str.length);
-	hdr.write_shift(1, (nfmts > 1 ? 0x08 : 0x00) | 0x01);
-	if(nfmts > 1) hdr.write_shift(2, nfmts);
-
-	var otext = new_buf(2 * str.length);
-	otext.write_shift(2 * str.length, str, 'utf16le');
-
-	var out = [hdr, otext];
-
-	return bconcat(out);
-}

 /* 2.5.296 XLUnicodeStringNoCch */
 function parse_XLUnicodeStringNoCch(blob, cch, opts) {
@ -530,17 +503,16 @@ function parse_URLMoniker(blob/*::, length, opts*/) {

 /* [MS-OSHARED] 2.3.7.8 FileMoniker TODO: all fields */
 function parse_FileMoniker(blob/*::, length*/) {
-	var cAnti = blob.read_shift(2);
-	var preamble = ""; while(cAnti-- > 0) preamble += "../";
+	blob.l += 2; //var cAnti = blob.read_shift(2);
 	var ansiPath = blob.read_shift(0, 'lpstr-ansi');
 	blob.l += 2; //var endServer = blob.read_shift(2);
 	if(blob.read_shift(2) != 0xDEAD) throw new Error("Bad FileMoniker");
 	var sz = blob.read_shift(4);
-	if(sz === 0) return preamble + ansiPath.replace(/\\/g,"/");
+	if(sz === 0) return ansiPath.replace(/\\/g,"/");
 	var bytes = blob.read_shift(4);
 	if(blob.read_shift(2) != 3) throw new Error("Bad FileMoniker");
 	var unicodePath = blob.read_shift(bytes>>1, 'utf16le').replace(chr0,"");
-	return preamble + unicodePath;
+	return unicodePath;
 }

 /* [MS-OSHARED] 2.3.7.2 HyperlinkMoniker TODO: all the monikers */
@ -559,13 +531,6 @@ function parse_HyperlinkString(blob/*::, length*/) {
 	var o = len > 0 ? blob.read_shift(len, 'utf16le').replace(chr0, "") : "";
 	return o;
 }
-function write_HyperlinkString(str/*:string*/, o) {
-	if(!o) o = new_buf(6 + str.length * 2);
-	o.write_shift(4, 1 + str.length);
-	for(var i = 0; i < str.length; ++i) o.write_shift(2, str.charCodeAt(i));
-	o.write_shift(2, 0);
-	return o;
-}

 /* [MS-OSHARED] 2.3.7.1 Hyperlink Object */
 function parse_Hyperlink(blob, length)/*:Hyperlink*/ {
@ -586,7 +551,6 @@ function parse_Hyperlink(blob, length)/*:Hyperlink*/ {
 	var target = targetFrameName||moniker||oleMoniker||"";
 	if(target && Loc) target+="#"+Loc;
 	if(!target) target = "#" + Loc;
-	if((flags & 0x0002) && target.charAt(0) == "/" && target.charAt(1) != "/") target = "file://" + target;
 	var out = ({Target:target}/*:any*/);
 	if(guid) out.guid = guid;
 	if(fileTime) out.time = fileTime;
@ -596,31 +560,29 @@ function parse_Hyperlink(blob, length)/*:Hyperlink*/ {
 function write_Hyperlink(hl) {
 	var out = new_buf(512), i = 0;
 	var Target = hl.Target;
-	if(Target.slice(0,7) == "file://") Target = Target.slice(7);
-	var hashidx = Target.indexOf("#");
-	var F = hashidx > -1 ? 0x1f : 0x17;
+	var F = Target.indexOf("#") > -1 ? 0x1f : 0x17;
 	switch(Target.charAt(0)) { case "#": F=0x1c; break; case ".": F&=~2; break; }
 	out.write_shift(4,2); out.write_shift(4, F);
 	var data = [8,6815827,6619237,4849780,83]; for(i = 0; i < data.length; ++i) out.write_shift(4, data[i]);
 	if(F == 0x1C) {
 		Target = Target.slice(1);
-		write_HyperlinkString(Target, out);
+		out.write_shift(4, Target.length + 1);
+		for(i = 0; i < Target.length; ++i) out.write_shift(2, Target.charCodeAt(i));
+		out.write_shift(2, 0);
 	} else if(F & 0x02) {
 		data = "e0 c9 ea 79 f9 ba ce 11 8c 82 00 aa 00 4b a9 0b".split(" ");
 		for(i = 0; i < data.length; ++i) out.write_shift(1, parseInt(data[i], 16));
-		var Pretarget = hashidx > -1 ? Target.slice(0, hashidx) : Target;
-		out.write_shift(4, 2*(Pretarget.length + 1));
-		for(i = 0; i < Pretarget.length; ++i) out.write_shift(2, Pretarget.charCodeAt(i));
+		out.write_shift(4, 2*(Target.length + 1));
+		for(i = 0; i < Target.length; ++i) out.write_shift(2, Target.charCodeAt(i));
 		out.write_shift(2, 0);
-		if(F & 0x08) write_HyperlinkString(hashidx > -1 ? Target.slice(hashidx+1): "", out);
 	} else {
 		data = "03 03 00 00 00 00 00 00 c0 00 00 00 00 00 00 46".split(" ");
 		for(i = 0; i < data.length; ++i) out.write_shift(1, parseInt(data[i], 16));
 		var P = 0;
 		while(Target.slice(P*3,P*3+3)=="../"||Target.slice(P*3,P*3+3)=="..\\") ++P;
 		out.write_shift(2, P);
-		out.write_shift(4, Target.length - 3 * P + 1);
-		for(i = 0; i < Target.length - 3 * P; ++i) out.write_shift(1, Target.charCodeAt(i + 3 * P) & 0xFF);
+		out.write_shift(4, Target.length + 1);
+		for(i = 0; i < Target.length; ++i) out.write_shift(1, Target.charCodeAt(i) & 0xFF);
 		out.write_shift(1, 0);
 		out.write_shift(2, 0xFFFF);
 		out.write_shift(2, 0xDEAD);
--- a/bits/39_xlsbiff.js
+++ b/bits/39_xlsbiff.js
@ -223,7 +223,7 @@ function write_WriteAccess(s/*:string*/, opts) {
 /* [MS-XLS] 2.4.351 */
 function parse_WsBool(blob, length, opts) {
 	var flags = opts && opts.biff == 8 || length == 2 ? blob.read_shift(2) : (blob.l += length, 0);
-	return { fDialog: flags & 0x10, fBelow: flags & 0x40, fRight: flags & 0x80 };
+	return { fDialog: flags & 0x10 };
 }

 /* [MS-XLS] 2.4.28 */
@ -266,16 +266,6 @@ function parse_SST(blob, length)/*:SST*/ {
 	strs.Count = cnt; strs.Unique = ucnt;
 	return strs;
 }
-function write_SST(sst, opts) {
-	var header = new_buf(8);
-	header.write_shift(4, sst.Count);
-	header.write_shift(4, sst.Unique);
-	var strs = [];
-	for(var j = 0; j < sst.length; ++j) strs[j] = write_XLUnicodeRichExtendedString(sst[j], opts);
-	var o = bconcat([header].concat(strs));
-	/*::(*/o/*:: :any)*/.parts = [header.length].concat(strs.map(function(str) { return str.length; }));
-	return o;
-}

 /* [MS-XLS] 2.4.107 */
 function parse_ExtSST(blob, length) {
@ -359,7 +349,7 @@ function write_Window1(/*::opts*/) {
 }
 /* [MS-XLS] 2.4.346 TODO */
 function parse_Window2(blob, length, opts) {
-	if(opts && opts.biff >= 2 && opts.biff < 5) return {};
+	if(opts && opts.biff >= 2 && opts.biff < 8) return {};
 	var f = blob.read_shift(2);
 	return { RTL: f & 0x40 };
 }
@ -374,10 +364,6 @@ function write_Window2(view) {
 	return o;
 }

-/* [MS-XLS] 2.4.189 TODO */
-function parse_Pane(/*blob, length, opts*/) {
-}
-
 /* [MS-XLS] 2.4.122 TODO */
 function parse_Font(blob, length, opts) {
 	var o/*:any*/ = {
@ -413,16 +399,9 @@ function parse_LabelSst(blob) {
 	cell.isst = blob.read_shift(4);
 	return cell;
 }
-function write_LabelSst(R/*:number*/, C/*:number*/, v/*:number*/, os/*:number*/ /*::, opts*/) {
-	var o = new_buf(10);
-	write_XLSCell(R, C, os, o);
-	o.write_shift(4, v);
-	return o;
-}

 /* [MS-XLS] 2.4.148 */
 function parse_Label(blob, length, opts) {
-	if(opts.biffguess && opts.biff == 2) opts.biff = 5;
 	var target = blob.l + length;
 	var cell = parse_XLSCell(blob, 6);
 	if(opts.biff == 2) blob.l++;
@ -574,9 +553,7 @@ function write_XF(data, ixfeP, opts, o) {
 		o.write_shift(2, (data.numFmtId||0));
 		o.write_shift(2, (ixfeP<<4));
 	}
-	var f = 0;
-	if(data.numFmtId > 0 && b5) f |= 0x0400;
-	o.write_shift(4, f);
+	o.write_shift(4, 0);
 	o.write_shift(4, 0);
 	if(!b5) o.write_shift(4, 0);
 	o.write_shift(2, 0);
@ -603,7 +580,7 @@ function write_Guts(guts/*:Array<number>*/) {
 /* [MS-XLS] 2.4.24 */
 function parse_BoolErr(blob, length, opts) {
 	var cell = parse_XLSCell(blob, 6);
-	if(opts.biff == 2 || length == 9) ++blob.l;
+	if(opts.biff == 2) ++blob.l;
 	var val = parse_Bes(blob, 2);
 	cell.val = val;
 	cell.t = (val === true || val === false) ? 'b' : 'e';
@ -617,8 +594,7 @@ function write_BoolErr(R/*:number*/, C/*:number*/, v, os/*:number*/, opts, t/*:s
 }

 /* [MS-XLS] 2.4.180 Number */
-function parse_Number(blob, length, opts) {
-	if(opts.biffguess && opts.biff == 2) opts.biff = 5;
+function parse_Number(blob) {
 	var cell = parse_XLSCell(blob, 6);
 	var xnum = parse_Xnum(blob, 8);
 	cell.val = xnum;
@ -669,6 +645,22 @@ function parse_ExternName(blob, length, opts) {
 }

 /* [MS-XLS] 2.4.150 TODO */
+var XLSLblBuiltIn = [
+	"_xlnm.Consolidate_Area",
+	"_xlnm.Auto_Open",
+	"_xlnm.Auto_Close",
+	"_xlnm.Extract",
+	"_xlnm.Database",
+	"_xlnm.Criteria",
+	"_xlnm.Print_Area",
+	"_xlnm.Print_Titles",
+	"_xlnm.Recorder",
+	"_xlnm.Data_Form",
+	"_xlnm.Auto_Activate",
+	"_xlnm.Auto_Deactivate",
+	"_xlnm.Sheet_Title",
+	"_xlnm._FilterDatabase"
+];
 function parse_Lbl(blob, length, opts) {
 	var target = blob.l + length;
 	var flags = blob.read_shift(2);
@ -685,9 +677,7 @@ function parse_Lbl(blob, length, opts) {
 	var name = parse_XLUnicodeStringNoCch(blob, cch, opts);
 	if(flags & 0x20) name = XLSLblBuiltIn[name.charCodeAt(0)];
 	var npflen = target - blob.l; if(opts && opts.biff == 2) --npflen;
-	/*jshint -W018 */
-	var rgce = (target == blob.l || cce === 0 || !(npflen > 0)) ? [] : parse_NameParsedFormula(blob, npflen, opts, cce);
-	/*jshint +W018 */
+	var rgce = target == blob.l || cce === 0 ? [] : parse_NameParsedFormula(blob, npflen, opts, cce);
 	return {
 		chKey: chKey,
 		Name: name,
@ -788,8 +778,8 @@ function parse_Obj(blob, length, opts) {
 	return { cmo: cmo, ft:fts };
 }
 /* from older spec */
-var parse_BIFF5OT = {
-0x08: function(blob, length) {
+var parse_BIFF5OT = [];
+parse_BIFF5OT[0x08] = function(blob, length) {
 	var tgt = blob.l + length;
 	blob.l += 10; // todo
 	var cf = blob.read_shift(2);
@ -802,7 +792,6 @@ var parse_BIFF5OT = {
 	blob.l += cchName; // TODO: stName
 	blob.l = tgt; // TODO: fmla
 	return { fmt:cf };
-}
 };

 function parse_BIFF5Obj(blob, length, opts) {
@ -835,7 +824,7 @@ try {
 	var ot = (opts.lastobj||{cmo:[0,0]}).cmo[1];
 	var controlInfo; // eslint-disable-line no-unused-vars
 	if([0,5,7,11,12,14].indexOf(ot) == -1) blob.l += 6;
-	else controlInfo = parse_ControlInfo(blob, 6, opts); // eslint-disable-line no-unused-vars
+	else controlInfo = parse_ControlInfo(blob, 6, opts);
 	var cchText = blob.read_shift(2);
 	/*var cbRuns = */blob.read_shift(2);
 	/*var ifntEmpty = */parseuint16(blob, 2);
@ -954,23 +943,7 @@ function parse_ColInfo(blob, length, opts) {
 	var ixfe = blob.read_shift(w);
 	var flags = blob.read_shift(2);
 	if(w == 2) blob.l += 2;
-	var o = ({s:colFirst, e:colLast, w:coldx, ixfe:ixfe, flags:flags}/*:any*/);
-	if(opts.biff >= 5 || !opts.biff) o.level = (flags >> 8) & 0x7;
-	return o;
-}
-function write_ColInfo(col, idx) {
-	var o = new_buf(12);
-	o.write_shift(2, idx);
-	o.write_shift(2, idx);
-	o.write_shift(2, col.width * 256);
-	o.write_shift(2, 0);
-	var f = 0;
-	if(col.hidden) f |= 1;
-	o.write_shift(1, f);
-	f = col.level || 0;
-	o.write_shift(1, f);
-	o.write_shift(2, 0);
-	return o;
+	return {s:colFirst, e:colLast, w:coldx, ixfe:ixfe, flags:flags};
 }

 /* [MS-XLS] 2.4.257 */
@ -1016,7 +989,6 @@ function parse_ImData(blob) {

 /* BIFF2_??? where ??? is the name from [XLS] */
 function parse_BIFF2STR(blob, length, opts) {
-	if(opts.biffguess && opts.biff == 5) opts.biff = 2;
 	var cell = parse_XLSCell(blob, 6);
 	++blob.l;
 	var str = parse_XLUnicodeString2(blob, length-7, opts);
--- a/bits/40_harb.js
+++ b/bits/40_harb.js
--- a/bits/41_lotus.js
+++ b/bits/41_lotus.js
--- a/bits/42_sstxml.js
+++ b/bits/42_sstxml.js
@ -1,135 +1,103 @@
-/* 18.4.7 rPr CT_RPrElt */
-function parse_rpr(rpr) {
-	var font = {}, m = rpr.match(tagregex), i = 0;
-	var pass = false;
-	if(m) for(;i!=m.length; ++i) {
-		var y = parsexmltag(m[i]);
-		switch(y[0].replace(/\w*:/g,"")) {
-			/* 18.8.12 condense CT_BooleanProperty */
-			/* ** not required . */
-			case '<condense': break;
-			/* 18.8.17 extend CT_BooleanProperty */
-			/* ** not required . */
-			case '<extend': break;
-			/* 18.8.36 shadow CT_BooleanProperty */
-			/* ** not required . */
-			case '<shadow':
-				if(!y.val) break;
-				/* falls through */
-			case '<shadow>':
-			case '<shadow/>': font.shadow = 1; break;
-			case '</shadow>': break;
-
-			/* 18.4.1 charset CT_IntProperty TODO */
-			case '<charset':
-				if(y.val == '1') break;
-				font.cp = CS2CP[parseInt(y.val, 10)];
-				break;
-
-			/* 18.4.2 outline CT_BooleanProperty TODO */
-			case '<outline':
-				if(!y.val) break;
-				/* falls through */
-			case '<outline>':
-			case '<outline/>': font.outline = 1; break;
-			case '</outline>': break;
-
-			/* 18.4.5 rFont CT_FontName */
-			case '<rFont': font.name = y.val; break;
-
-			/* 18.4.11 sz CT_FontSize */
-			case '<sz': font.sz = y.val; break;
-
-			/* 18.4.10 strike CT_BooleanProperty */
-			case '<strike':
-				if(!y.val) break;
-				/* falls through */
-			case '<strike>':
-			case '<strike/>': font.strike = 1; break;
-			case '</strike>': break;
-
-			/* 18.4.13 u CT_UnderlineProperty */
-			case '<u':
-				if(!y.val) break;
-				switch(y.val) {
-					case 'double': font.uval = "double"; break;
-					case 'singleAccounting': font.uval = "single-accounting"; break;
-					case 'doubleAccounting': font.uval = "double-accounting"; break;
-				}
-				/* falls through */
-			case '<u>':
-			case '<u/>': font.u = 1; break;
-			case '</u>': break;
-
-			/* 18.8.2 b */
-			case '<b':
-				if(y.val == '0') break;
-				/* falls through */
-			case '<b>':
-			case '<b/>': font.b = 1; break;
-			case '</b>': break;
-
-			/* 18.8.26 i */
-			case '<i':
-				if(y.val == '0') break;
-				/* falls through */
-			case '<i>':
-			case '<i/>': font.i = 1; break;
-			case '</i>': break;
-
-			/* 18.3.1.15 color CT_Color TODO: tint, theme, auto, indexed */
-			case '<color':
-				if(y.rgb) font.color = y.rgb.slice(2,8);
-				break;
-			case '<color>': case '<color/>': case '</color>': break;
-
-			/* 18.8.18 family ST_FontFamily */
-			case '<family': font.family = y.val; break;
-			case '<family>': case '<family/>': case '</family>': break;
-
-			/* 18.4.14 vertAlign CT_VerticalAlignFontProperty TODO */
-			case '<vertAlign': font.valign = y.val; break;
-			case '<vertAlign>': case '<vertAlign/>': case '</vertAlign>': break;
-
-			/* 18.8.35 scheme CT_FontScheme TODO */
-			case '<scheme': break;
-			case '<scheme>': case '<scheme/>': case '</scheme>': break;
-
-			/* 18.2.10 extLst CT_ExtensionList ? */
-			case '<extLst': case '<extLst>': case '</extLst>': break;
-			case '<ext': pass = true; break;
-			case '</ext>': pass = false; break;
-			default:
-				if(y[0].charCodeAt(1) !== 47 && !pass) throw new Error('Unrecognized rich format ' + y[0]);
-		}
-	}
-	return font;
-}
-
-var parse_rs = /*#__PURE__*/(function() {
-	var tregex = matchtag("t"), rpregex = matchtag("rPr");
-	/* 18.4.4 r CT_RElt */
-	function parse_r(r) {
-		/* 18.4.12 t ST_Xstring */
-		var t = r.match(tregex)/*, cp = 65001*/;
-		if(!t) return {t:"s", v:""};
-
-		var o/*:Cell*/ = ({t:'s', v:unescapexml(t[1])}/*:any*/);
-		var rpr = r.match(rpregex);
-		if(rpr) o.s = parse_rpr(rpr[1]);
-		return o;
-	}
-	var rregex = /<(?:\w+:)?r>/g, rend = /<\/(?:\w+:)?r>/;
-	return function parse_rs(rs) {
-		return rs.replace(rregex,"").split(rend).map(parse_r).filter(function(r) { return r.v; });
-	};
-})();
-
-
 /* Parse a list of <r> tags */
-var rs_to_html = /*#__PURE__*/(function parse_rs_factory() {
-	var nlregex = /(\r\n|\n)/g;
-	function parse_rpr2(font, intro, outro) {
+var parse_rs = (function parse_rs_factory() {
+	var tregex = matchtag("t"), rpregex = matchtag("rPr"), rregex = /<(?:\w+:)?r>/g, rend = /<\/(?:\w+:)?r>/, nlregex = /\r\n/g;
+	/* 18.4.7 rPr CT_RPrElt */
+	var parse_rpr = function parse_rpr(rpr, intro, outro) {
+		var font = {}, cp = 65001, align = "";
+		var m = rpr.match(tagregex), i = 0;
+		if(m) for(;i!=m.length; ++i) {
+			var y = parsexmltag(m[i]);
+			switch(y[0].replace(/\w*:/g,"")) {
+				/* 18.8.12 condense CT_BooleanProperty */
+				/* ** not required . */
+				case '<condense': break;
+				/* 18.8.17 extend CT_BooleanProperty */
+				/* ** not required . */
+				case '<extend': break;
+				/* 18.8.36 shadow CT_BooleanProperty */
+				/* ** not required . */
+				case '<shadow':
+					if(!y.val) break;
+					/* falls through */
+				case '<shadow>':
+				case '<shadow/>': font.shadow = 1; break;
+				case '</shadow>': break;
+
+				/* 18.4.1 charset CT_IntProperty TODO */
+				case '<charset':
+					if(y.val == '1') break;
+					cp = CS2CP[parseInt(y.val, 10)];
+					break;
+
+				/* 18.4.2 outline CT_BooleanProperty TODO */
+				case '<outline':
+					if(!y.val) break;
+					/* falls through */
+				case '<outline>':
+				case '<outline/>': font.outline = 1; break;
+				case '</outline>': break;
+
+				/* 18.4.5 rFont CT_FontName */
+				case '<rFont': font.name = y.val; break;
+
+				/* 18.4.11 sz CT_FontSize */
+				case '<sz': font.sz = y.val; break;
+
+				/* 18.4.10 strike CT_BooleanProperty */
+				case '<strike':
+					if(!y.val) break;
+					/* falls through */
+				case '<strike>':
+				case '<strike/>': font.strike = 1; break;
+				case '</strike>': break;
+
+				/* 18.4.13 u CT_UnderlineProperty */
+				case '<u':
+					if(!y.val) break;
+					switch(y.val) {
+						case 'double': font.uval = "double"; break;
+						case 'singleAccounting': font.uval = "single-accounting"; break;
+						case 'doubleAccounting': font.uval = "double-accounting"; break;
+					}
+					/* falls through */
+				case '<u>':
+				case '<u/>': font.u = 1; break;
+				case '</u>': break;
+
+				/* 18.8.2 b */
+				case '<b':
+					if(y.val == '0') break;
+					/* falls through */
+				case '<b>':
+				case '<b/>': font.b = 1; break;
+				case '</b>': break;
+
+				/* 18.8.26 i */
+				case '<i':
+					if(y.val == '0') break;
+					/* falls through */
+				case '<i>':
+				case '<i/>': font.i = 1; break;
+				case '</i>': break;
+
+				/* 18.3.1.15 color CT_Color TODO: tint, theme, auto, indexed */
+				case '<color':
+					if(y.rgb) font.color = y.rgb.slice(2,8);
+					break;
+
+				/* 18.8.18 family ST_FontFamily */
+				case '<family': font.family = y.val; break;
+
+				/* 18.4.14 vertAlign CT_VerticalAlignFontProperty TODO */
+				case '<vertAlign': align = y.val; break;
+
+				/* 18.8.35 scheme CT_FontScheme TODO */
+				case '<scheme': break;
+
+				default:
+					if(y[0].charCodeAt(1) !== 47) throw 'Unrecognized rich format ' + y[0];
+			}
+		}
 		var style/*:Array<string>*/ = [];

 		if(font.u) style.push("text-decoration: underline;");
@ -143,50 +111,52 @@ var rs_to_html = /*#__PURE__*/(function parse_rs_factory() {
 		if(font.i) { intro.push("<i>"); outro.push("</i>"); }
 		if(font.strike) { intro.push("<s>"); outro.push("</s>"); }

-		var align = font.valign || "";
-		if(align == "superscript" || align == "super") align = "sup";
+		if(align == "superscript") align = "sup";
 		else if(align == "subscript") align = "sub";
 		if(align != "") { intro.push("<" + align + ">"); outro.push("</" + align + ">"); }

 		outro.push("</span>");
-		return font;
-	}
+		return cp;
+	};

 	/* 18.4.4 r CT_RElt */
-	function r_to_html(r) {
-		var terms/*:[Array<string>, string, Array<string>]*/ = [[],r.v,[]];
-		if(!r.v) return "";
+	function parse_r(r) {
+		var terms/*:[Array<string>, string, Array<string>]*/ = [[],"",[]];
+		/* 18.4.12 t ST_Xstring */
+		var t = r.match(tregex)/*, cp = 65001*/;
+		if(!t) return "";
+		terms[1] = t[1];

-		if(r.s) parse_rpr2(r.s, terms[0], terms[2]);
+		var rpr = r.match(rpregex);
+		if(rpr) /*cp = */parse_rpr(rpr[1], terms[0], terms[2]);

 		return terms[0].join("") + terms[1].replace(nlregex,'<br/>') + terms[2].join("");
 	}
-
 	return function parse_rs(rs) {
-		return rs.map(r_to_html).join("");
+		return rs.replace(rregex,"").split(rend).map(parse_r).join("");
 	};
 })();

 /* 18.4.8 si CT_Rst */
-var sitregex = /<(?:\w+:)?t[^>]*>([^<]*)<\/(?:\w+:)?t>/g, sirregex = /<(?:\w+:)?r\b[^>]*>/;
+var sitregex = /<(?:\w+:)?t[^>]*>([^<]*)<\/(?:\w+:)?t>/g, sirregex = /<(?:\w+:)?r>/;
 var sirphregex = /<(?:\w+:)?rPh.*?>([\s\S]*?)<\/(?:\w+:)?rPh>/g;
 function parse_si(x, opts) {
 	var html = opts ? opts.cellHTML : true;
 	var z = {};
-	if(!x) return { t: "" };
+	if(!x) return null;
 	//var y;
 	/* 18.4.12 t ST_Xstring (Plaintext String) */
 	// TODO: is whitespace actually valid here?
 	if(x.match(/^\s*<(?:\w+:)?t[^>]*>/)) {
-		z.t = unescapexml(utf8read(x.slice(x.indexOf(">")+1).split(/<\/(?:\w+:)?t>/)[0]||""), true);
+		z.t = unescapexml(utf8read(x.slice(x.indexOf(">")+1).split(/<\/(?:\w+:)?t>/)[0]||""));
 		z.r = utf8read(x);
 		if(html) z.h = escapehtml(z.t);
 	}
 	/* 18.4.4 r CT_RElt (Rich Text Run) */
 	else if((/*y = */x.match(sirregex))) {
 		z.r = utf8read(x);
-		z.t = unescapexml(utf8read((x.replace(sirphregex, '').match(sitregex)||[]).join("").replace(tagregex,"")), true);
-		if(html) z.h = rs_to_html(parse_rs(z.r));
+		z.t = unescapexml(utf8read((x.replace(sirphregex, '').match(sitregex)||[]).join("").replace(tagregex,"")));
+		if(html) z.h = parse_rs(z.r);
 	}
 	/* 18.4.3 phoneticPr CT_PhoneticPr (TODO: needed for Asian support) */
 	/* 18.4.6 rPh CT_PhoneticRun (TODO: needed for Asian support) */
@ -213,12 +183,13 @@ function parse_sst_xml(data/*:string*/, opts)/*:SST*/ {
 	return s;
 }

+RELS.SST = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings";
 var straywsregex = /^\s|\s$|[\t\n\r]/;
 function write_sst_xml(sst/*:SST*/, opts)/*:string*/ {
 	if(!opts.bookSST) return "";
 	var o = [XML_HEADER];
 	o[o.length] = (writextag('sst', null, {
-		xmlns: XMLNS_main[0],
+		xmlns: XMLNS.main[0],
 		count: sst.Count,
 		uniqueCount: sst.Unique
 	}));
@ -229,7 +200,6 @@ function write_sst_xml(sst/*:SST*/, opts)/*:string*/ {
 		else {
 			sitag += "<t";
 			if(!s.t) s.t = "";
-			if(typeof s.t !== "string") s.t = String(s.t);
 			if(s.t.match(straywsregex)) sitag += ' xml:space="preserve"';
 			sitag += ">" + escapexml(s.t) + "</t>";
 		}
--- a/bits/43_sstbin.js
+++ b/bits/43_sstbin.js
@ -7,23 +7,24 @@ function parse_BrtBeginSst(data) {
 function parse_sst_bin(data, opts)/*:SST*/ {
 	var s/*:SST*/ = ([]/*:any*/);
 	var pass = false;
-	recordhopper(data, function hopper_sst(val, R, RT) {
+	recordhopper(data, function hopper_sst(val, R_n, RT) {
 		switch(RT) {
-			case 0x009F: /* BrtBeginSst */
+			case 0x009F: /* 'BrtBeginSst' */
 				s.Count = val[0]; s.Unique = val[1]; break;
-			case 0x0013: /* BrtSSTItem */
+			case 0x0013: /* 'BrtSSTItem' */
 				s.push(val); break;
-			case 0x00A0: /* BrtEndSst */
+			case 0x00A0: /* 'BrtEndSst' */
 				return true;

-			case 0x0023: /* BrtFRTBegin */
+			case 0x0023: /* 'BrtFRTBegin' */
 				pass = true; break;
-			case 0x0024: /* BrtFRTEnd */
+			case 0x0024: /* 'BrtFRTEnd' */
 				pass = false; break;

 			default:
-				if(R.T){}
-				if(!pass || opts.WTF) throw new Error("Unexpected record 0x" + RT.toString(16));
+				if(R_n.indexOf("Begin") > 0){/* empty */}
+				else if(R_n.indexOf("End") > 0){/* empty */}
+				if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
 		}
 	});
 	return s;
@ -40,9 +41,9 @@ var write_BrtSSTItem = write_RichStr;

 function write_sst_bin(sst/*::, opts*/) {
 	var ba = buf_array();
-	write_record(ba, 0x009F /* BrtBeginSst */, write_BrtBeginSst(sst));
-	for(var i = 0; i < sst.length; ++i) write_record(ba, 0x0013 /* BrtSSTItem */, write_BrtSSTItem(sst[i]));
+	write_record(ba, "BrtBeginSst", write_BrtBeginSst(sst));
+	for(var i = 0; i < sst.length; ++i) write_record(ba, "BrtSSTItem", write_BrtSSTItem(sst[i]));
 	/* FRTSST */
-	write_record(ba, 0x00A0 /* BrtEndSst */);
+	write_record(ba, "BrtEndSst");
 	return ba.end();
 }
--- a/bits/44_offcrypto.js
+++ b/bits/44_offcrypto.js
@ -1,5 +1,5 @@
 function _JS2ANSI(str/*:string*/)/*:Array<number>*/ {
-	if(typeof $cptable !== 'undefined') return $cptable.utils.encode(current_ansi, str);
+	if(typeof cptable !== 'undefined') return cptable.utils.encode(current_ansi, str);
 	var o/*:Array<number>*/ = [], oo = str.split("");
 	for(var i = 0; i < oo.length; ++i) o[i] = oo[i].charCodeAt(0);
 	return o;
@ -208,7 +208,7 @@ function crypto_CreatePasswordVerifier_Method1(Password/*:string*/) {
 }

 /* [MS-OFFCRYPTO] 2.3.7.2 Binary Document XOR Array Initialization */
-var crypto_CreateXorArray_Method1 = /*#__PURE__*/(function() {
+var crypto_CreateXorArray_Method1 = (function() {
 	var PadArray = [0xBB, 0xFF, 0xFF, 0xBA, 0xFF, 0xFF, 0xB9, 0x80, 0x00, 0xBE, 0x0F, 0x00, 0xBF, 0x0F, 0x00];
 	var InitialCode = [0xE1F0, 0x1D0F, 0xCC9C, 0x84C0, 0x110C, 0x0E10, 0xF1CE, 0x313E, 0x1872, 0xE139, 0xD40F, 0x84F9, 0x280C, 0xA96A, 0x4EC3];
 	var XorMatrix = [0xAEFC, 0x4DD9, 0x9BB2, 0x2745, 0x4E8A, 0x9D14, 0x2A09, 0x7B61, 0xF6C2, 0xFDA5, 0xEB6B, 0xC6F7, 0x9DCF, 0x2BBF, 0x4563, 0x8AC6, 0x05AD, 0x0B5A, 0x16B4, 0x2D68, 0x5AD0, 0x0375, 0x06EA, 0x0DD4, 0x1BA8, 0x3750, 0x6EA0, 0xDD40, 0xD849, 0xA0B3, 0x5147, 0xA28E, 0x553D, 0xAA7A, 0x44D5, 0x6F45, 0xDE8A, 0xAD35, 0x4A4B, 0x9496, 0x390D, 0x721A, 0xEB23, 0xC667, 0x9CEF, 0x29FF, 0x53FE, 0xA7FC, 0x5FD9, 0x47D3, 0x8FA6, 0x0F6D, 0x1EDA, 0x3DB4, 0x7B68, 0xF6D0, 0xB861, 0x60E3, 0xC1C6, 0x93AD, 0x377B, 0x6EF6, 0xDDEC, 0x45A0, 0x8B40, 0x06A1, 0x0D42, 0x1A84, 0x3508, 0x6A10, 0xAA51, 0x4483, 0x8906, 0x022D, 0x045A, 0x08B4, 0x1168, 0x76B4, 0xED68, 0xCAF1, 0x85C3, 0x1BA7, 0x374E, 0x6E9C, 0x3730, 0x6E60, 0xDCC0, 0xA9A1, 0x4363, 0x86C6, 0x1DAD, 0x3331, 0x6662, 0xCCC4, 0x89A9, 0x0373, 0x06E6, 0x0DCC, 0x1021, 0x2042, 0x4084, 0x8108, 0x1231, 0x2462, 0x48C4];
--- a/bits/45_rtf.js
+++ b/bits/45_rtf.js
@ -1,103 +1,52 @@
-function rtf_to_sheet(d, opts) {
-  switch (opts.type) {
-    case "base64":
-      return rtf_to_sheet_str(Base64_decode(d), opts);
-    case "binary":
-      return rtf_to_sheet_str(d, opts);
-    case "buffer":
-      return rtf_to_sheet_str(has_buf && Buffer.isBuffer(d) ? d.toString("binary") : a2s(d), opts);
-    case "array":
-      return rtf_to_sheet_str(cc2str(d), opts);
-  }
-  throw new Error("Unrecognized type " + opts.type);
-}
-function rtf_to_sheet_str(str, opts) {
-  var o = opts || {};
-  var ws = {};
-  var dense = o.dense;
-  if (dense)
-    ws["!data"] = [];
-  var rows = str.match(/\\trowd[\s\S]*?\\row\b/g);
-  if (!rows)
-    throw new Error("RTF missing table");
-  var range = { s: { c: 0, r: 0 }, e: { c: 0, r: rows.length - 1 } };
-  var row = [];
-  rows.forEach(function(rowtf, R) {
-    if (dense)
-      row = ws["!data"][R] = [];
-    var rtfre = /\\[\w\-]+\b/g;
-    var last_index = 0;
-    var res;
-    var C = -1;
-    var payload = [];
-    while ((res = rtfre.exec(rowtf)) != null) {
-      var data = rowtf.slice(last_index, rtfre.lastIndex - res[0].length);
-      if (data.charCodeAt(0) == 32)
-        data = data.slice(1);
-      if (data.length)
-        payload.push(data);
-      switch (res[0]) {
-        case "\\cell":
-          ++C;
-          if (payload.length) {
-            var cell = { v: payload.join(""), t: "s" };
-            if (cell.v == "TRUE" || cell.v == "FALSE") {
-              cell.v = cell.v == "TRUE";
-              cell.t = "b";
-            } else if (!isNaN(fuzzynum(cell.v))) {
-              cell.t = "n";
-              if (o.cellText !== false)
-                cell.w = cell.v;
-              cell.v = fuzzynum(cell.v);
-            }
-            if (dense)
-              row[C] = cell;
-            else
-              ws[encode_cell({ r: R, c: C })] = cell;
-          }
-          payload = [];
-          break;
-        case "\\par":
-          payload.push("\n");
-          break;
-      }
-      last_index = rtfre.lastIndex;
-    }
-    if (C > range.e.c)
-      range.e.c = C;
-  });
-  ws["!ref"] = encode_range(range);
-  return ws;
-}
-function rtf_to_workbook(d, opts) {
-  var wb = sheet_to_workbook(rtf_to_sheet(d, opts), opts);
-  wb.bookType = "rtf";
-  return wb;
-}
-function sheet_to_rtf(ws, opts) {
-  var o = ["{\\rtf1\\ansi"];
-  if (!ws["!ref"])
-    return o[0] + "}";
-  var r = safe_decode_range(ws["!ref"]), cell;
-  var dense = ws["!data"] != null, row = [];
-  for (var R = r.s.r; R <= r.e.r; ++R) {
-    o.push("\\trowd\\trautofit1");
-    for (var C = r.s.c; C <= r.e.c; ++C)
-      o.push("\\cellx" + (C + 1));
-    o.push("\\pard\\intbl");
-    if (dense)
-      row = ws["!data"][R] || [];
-    for (C = r.s.c; C <= r.e.c; ++C) {
-      var coord = encode_cell({ r: R, c: C });
-      cell = dense ? row[C] : ws[coord];
-      if (!cell || cell.v == null && (!cell.f || cell.F)) {
-        o.push(" \\cell");
-        continue;
-      }
-      o.push(" " + (cell.w || (format_cell(cell), cell.w) || "").replace(/[\r\n]/g, "\\par "));
-      o.push("\\cell");
-    }
-    o.push("\\pard\\intbl\\row");
-  }
-  return o.join("") + "}";
-}
+var RTF = (function() {
+	function rtf_to_sheet(d/*:RawData*/, opts)/*:Worksheet*/ {
+		switch(opts.type) {
+			case 'base64': return rtf_to_sheet_str(Base64.decode(d), opts);
+			case 'binary': return rtf_to_sheet_str(d, opts);
+			case 'buffer': return rtf_to_sheet_str(d.toString('binary'), opts);
+			case 'array':  return rtf_to_sheet_str(cc2str(d), opts);
+		}
+		throw new Error("Unrecognized type " + opts.type);
+	}
+
+	function rtf_to_sheet_str(str/*:string*/, opts)/*:Worksheet*/ {
+		var o = opts || {};
+		var ws/*:Worksheet*/ = o.dense ? ([]/*:any*/) : ({}/*:any*/);
+		var range/*:Range*/ = ({s: {c:0, r:0}, e: {c:0, r:0}}/*:any*/);
+
+		// TODO: parse
+		if(!str.match(/\\trowd/)) throw new Error("RTF missing table");
+
+		ws['!ref'] = encode_range(range);
+		return ws;
+	}
+
+	function rtf_to_workbook(d/*:RawData*/, opts)/*:Workbook*/ { return sheet_to_workbook(rtf_to_sheet(d, opts), opts); }
+
+	/* TODO: this is a stub */
+	function sheet_to_rtf(ws/*:Worksheet*//*::, opts*/)/*:string*/ {
+		var o = ["{\\rtf1\\ansi"];
+		var r = safe_decode_range(ws['!ref']), cell/*:Cell*/;
+		var dense = Array.isArray(ws);
+		for(var R = r.s.r; R <= r.e.r; ++R) {
+			o.push("\\trowd\\trautofit1");
+			for(var C = r.s.c; C <= r.e.c; ++C) o.push("\\cellx" + (C+1));
+			o.push("\\pard\\intbl");
+			for(C = r.s.c; C <= r.e.c; ++C) {
+				var coord = encode_cell({r:R,c:C});
+				cell = dense ? (ws[R]||[])[C]: ws[coord];
+				if(!cell || cell.v == null && (!cell.f || cell.F)) continue;
+				o.push(" " + (cell.w || (format_cell(cell), cell.w)));
+				o.push("\\cell");
+			}
+			o.push("\\pard\\intbl\\row");
+		}
+		return o.join("") + "}";
+	}
+
+	return {
+		to_workbook: rtf_to_workbook,
+		to_sheet: rtf_to_sheet,
+		from_sheet: sheet_to_rtf
+	};
+})();
--- a/bits/47_styxml.js
+++ b/bits/47_styxml.js
@ -1,18 +1,18 @@
 /* 18.8.5 borders CT_Borders */
 function parse_borders(t, styles, themes, opts) {
 	styles.Borders = [];
-	var border = {};
+	var border = {}/*, sub_border = {}*/;
 	var pass = false;
-	(t[0].match(tagregex)||[]).forEach(function(x) {
+	t[0].match(tagregex).forEach(function(x) {
 		var y = parsexmltag(x);
-		switch(strip_ns(y[0])) {
+		switch (y[0]) {
 			case '<borders': case '<borders>': case '</borders>': break;

 			/* 18.8.4 border CT_Border */
 			case '<border': case '<border>': case '<border/>':
-				border = /*::(*/{}/*:: :any)*/;
-				if(y.diagonalUp) border.diagonalUp = parsexmlbool(y.diagonalUp);
-				if(y.diagonalDown) border.diagonalDown = parsexmlbool(y.diagonalDown);
+				border = {};
+				if (y.diagonalUp) { border.diagonalUp = y.diagonalUp; }
+				if (y.diagonalDown) { border.diagonalDown = y.diagonalDown; }
 				styles.Borders.push(border);
 				break;
 			case '</border>': break;
@ -58,8 +58,7 @@ function parse_borders(t, styles, themes, opts) {
 			case '</end>': break;

 			/* 18.8.? color CT_Color */
-			case '<color': case '<color>':
-				break;
+			case '<color': case '<color>': break;
 			case '<color/>': case '</color>': break;

 			/* 18.2.10 extLst CT_ExtensionList ? */
@ -78,9 +77,9 @@ function parse_fills(t, styles, themes, opts) {
 	styles.Fills = [];
 	var fill = {};
 	var pass = false;
-	(t[0].match(tagregex)||[]).forEach(function(x) {
+	t[0].match(tagregex).forEach(function(x) {
 		var y = parsexmltag(x);
-		switch(strip_ns(y[0])) {
+		switch(y[0]) {
 			case '<fills': case '<fills>': case '</fills>': break;

 			/* 18.8.20 fill CT_Fill */
@ -116,7 +115,7 @@ function parse_fills(t, styles, themes, opts) {
 				if(y.theme) fill.fgColor.theme = parseInt(y.theme, 10);
 				if(y.tint) fill.fgColor.tint = parseFloat(y.tint);
 				/* Excel uses ARGB strings */
-				if(y.rgb != null) fill.fgColor.rgb = y.rgb.slice(-6);
+				if(y.rgb) fill.fgColor.rgb = y.rgb.slice(-6);
 				break;
 			case '<fgColor/>': case '</fgColor>': break;

@ -144,9 +143,9 @@ function parse_fonts(t, styles, themes, opts) {
 	styles.Fonts = [];
 	var font = {};
 	var pass = false;
-	(t[0].match(tagregex)||[]).forEach(function(x) {
+	t[0].match(tagregex).forEach(function(x) {
 		var y = parsexmltag(x);
-		switch(strip_ns(y[0])) {
+		switch (y[0]) {
 			case '<fonts': case '<fonts>': case '</fonts>': break;

 			/* 18.8.22 font CT_Font */
@ -157,7 +156,7 @@ function parse_fonts(t, styles, themes, opts) {
 				break;

 			/* 18.8.29 name CT_FontName */
-			case '<name': if(y.val) font.name = utf8read(y.val); break;
+			case '<name': if(y.val) font.name = y.val; break;
 			case '<name/>': case '</name>': break;

 			/* 18.8.2  b CT_BooleanProperty */
@ -231,7 +230,7 @@ function parse_fonts(t, styles, themes, opts) {
 					font.color.index = parseInt(y.indexed, 10);
 					var icv = XLSIcv[font.color.index];
 					if(font.color.index == 81) icv = XLSIcv[1];
-					if(!icv) icv = XLSIcv[1]; //throw new Error(x); // note: 206 is valid
+					if(!icv) throw new Error(x);
 					font.color.rgb = icv[0].toString(16) + icv[1].toString(16) + icv[2].toString(16);
 				} else if(y.theme) {
 					font.color.theme = parseInt(y.theme, 10);
@ -244,10 +243,6 @@ function parse_fonts(t, styles, themes, opts) {
 				break;
 			case '<color/>': case '</color>': break;

-			/* note: sometimes mc:AlternateContent appears bare */
-			case '<AlternateContent': pass = true; break;
-			case '</AlternateContent>': pass = false; break;
-
 			/* 18.2.10 extLst CT_ExtensionList ? */
 			case '<extLst': case '<extLst>': case '</extLst>': break;
 			case '<ext': pass = true; break;
@ -262,13 +257,13 @@ function parse_fonts(t, styles, themes, opts) {
 /* 18.8.31 numFmts CT_NumFmts */
 function parse_numFmts(t, styles, opts) {
 	styles.NumberFmt = [];
-	var k/*Array<number>*/ = (keys(table_fmt)/*:any*/);
-	for(var i=0; i < k.length; ++i) styles.NumberFmt[k[i]] = table_fmt[k[i]];
+	var k/*Array<number>*/ = (keys(SSF._table)/*:any*/);
+	for(var i=0; i < k.length; ++i) styles.NumberFmt[k[i]] = SSF._table[k[i]];
 	var m = t[0].match(tagregex);
 	if(!m) return;
 	for(i=0; i < m.length; ++i) {
 		var y = parsexmltag(m[i]);
-		switch(strip_ns(y[0])) {
+		switch(y[0]) {
 			case '<numFmts': case '</numFmts>': case '<numFmts/>': case '<numFmts>': break;
 			case '<numFmt': {
 				var f=unescapexml(utf8read(y.formatCode)), j=parseInt(y.numFmtId,10);
@ -278,7 +273,7 @@ function parse_numFmts(t, styles, opts) {
 						for(j = 0x188; j > 0x3c; --j) if(styles.NumberFmt[j] == null) break;
 						styles.NumberFmt[j] = f;
 					}
-					SSF__load(f,j);
+					SSF.load(f,j);
 				}
 			} break;
 			case '</numFmt>': break;
@ -305,9 +300,9 @@ function parse_cellXfs(t, styles, opts) {
 	styles.CellXf = [];
 	var xf;
 	var pass = false;
-	(t[0].match(tagregex)||[]).forEach(function(x) {
+	t[0].match(tagregex).forEach(function(x) {
 		var y = parsexmltag(x), i = 0;
-		switch(strip_ns(y[0])) {
+		switch(y[0]) {
 			case '<cellXfs': case '<cellXfs>': case '<cellXfs/>': case '</cellXfs>': break;

 			/* 18.8.45 xf CT_Xf */
@ -318,7 +313,7 @@ function parse_cellXfs(t, styles, opts) {
 					xf[cellXF_uint[i]] = parseInt(xf[cellXF_uint[i]], 10);
 				for(i = 0; i < cellXF_bool.length; ++i) if(xf[cellXF_bool[i]])
 					xf[cellXF_bool[i]] = parsexmlbool(xf[cellXF_bool[i]]);
-				if(styles.NumberFmt && xf.numFmtId > 0x188) {
+				if(xf.numFmtId > 0x188) {
 					for(i = 0x188; i > 0x3c; --i) if(styles.NumberFmt[xf.numFmtId] == styles.NumberFmt[i]) { xf.numFmtId = i; break; }
 				}
 				styles.CellXf.push(xf); break;
@ -331,19 +326,13 @@ function parse_cellXfs(t, styles, opts) {
 				if(y.horizontal) alignment.horizontal = y.horizontal;
 				if(y.textRotation != null) alignment.textRotation = y.textRotation;
 				if(y.indent) alignment.indent = y.indent;
-				if(y.wrapText) alignment.wrapText = parsexmlbool(y.wrapText);
+				if(y.wrapText) alignment.wrapText = y.wrapText;
 				xf.alignment = alignment;
 				break;
 			case '</alignment>': break;

 			/* 18.8.33 protection CT_CellProtection */
-			case '<protection':
-				break;
-			case '</protection>': case '<protection/>': break;
-
-			/* note: sometimes mc:AlternateContent appears bare */
-			case '<AlternateContent': pass = true; break;
-			case '</AlternateContent>': pass = false; break;
+			case '<protection': case '</protection>': case '<protection/>': break;

 			/* 18.2.10 extLst CT_ExtensionList ? */
 			case '<extLst': case '<extLst>': case '</extLst>': break;
@ -359,9 +348,7 @@ function parse_cellXfs(t, styles, opts) {
 function write_cellXfs(cellXfs)/*:string*/ {
 	var o/*:Array<string>*/ = [];
 	o[o.length] = (writextag('cellXfs',null));
-	cellXfs.forEach(function(c) {
-		o[o.length] = (writextag('xf', null, c));
-	});
+	cellXfs.forEach(function(c) { o[o.length] = (writextag('xf', null, c)); });
 	o[o.length] = ("</cellXfs>");
 	if(o.length === 2) return "";
 	o[0] = writextag('cellXfs',null, {count:o.length-2}).replace("/>",">");
@ -369,12 +356,12 @@ function write_cellXfs(cellXfs)/*:string*/ {
 }

 /* 18.8 Styles CT_Stylesheet*/
-var parse_sty_xml= /*#__PURE__*/(function make_pstyx() {
-var numFmtRegex = /<(?:\w+:)?numFmts([^>]*)>[\S\s]*?<\/(?:\w+:)?numFmts>/;
-var cellXfRegex = /<(?:\w+:)?cellXfs([^>]*)>[\S\s]*?<\/(?:\w+:)?cellXfs>/;
-var fillsRegex = /<(?:\w+:)?fills([^>]*)>[\S\s]*?<\/(?:\w+:)?fills>/;
-var fontsRegex = /<(?:\w+:)?fonts([^>]*)>[\S\s]*?<\/(?:\w+:)?fonts>/;
-var bordersRegex = /<(?:\w+:)?borders([^>]*)>[\S\s]*?<\/(?:\w+:)?borders>/;
+var parse_sty_xml= (function make_pstyx() {
+var numFmtRegex = /<numFmts([^>]*)>[\S\s]*?<\/numFmts>/;
+var cellXfRegex = /<cellXfs([^>]*)>[\S\s]*?<\/cellXfs>/;
+var fillsRegex = /<fills([^>]*)>[\S\s]*?<\/fills>/;
+var fontsRegex = /<fonts([^>]*)>[\S\s]*?<\/fonts>/;
+var bordersRegex = /<borders([^>]*)>[\S\s]*?<\/borders>/;

 return function parse_sty_xml(data, themes, opts) {
 	var styles = {};
@ -396,11 +383,11 @@ return function parse_sty_xml(data, themes, opts) {
 	if((t=data.match(bordersRegex))) parse_borders(t, styles, themes, opts);

 	/* 18.8.9  cellStyleXfs CT_CellStyleXfs ? */
-	/* 18.8.8  cellStyles CT_CellStyles ? */

 	/* 18.8.10 cellXfs CT_CellXfs ? */
 	if((t=data.match(cellXfRegex))) parse_cellXfs(t, styles, opts);

+	/* 18.8.8  cellStyles CT_CellStyles ? */
 	/* 18.8.15 dxfs CT_Dxfs ? */
 	/* 18.8.42 tableStyles CT_TableStyles ? */
 	/* 18.8.11 colors CT_Colors ? */
@ -410,11 +397,15 @@ return function parse_sty_xml(data, themes, opts) {
 };
 })();

+var STYLES_XML_ROOT = writextag('styleSheet', null, {
+	'xmlns': XMLNS.main[0],
+	'xmlns:vt': XMLNS.vt
+});
+
+RELS.STY = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles";
+
 function write_sty_xml(wb/*:Workbook*/, opts)/*:string*/ {
-	var o = [XML_HEADER, writextag('styleSheet', null, {
-		'xmlns': XMLNS_main[0],
-		'xmlns:vt': XMLNS.vt
-	})], w;
+	var o = [XML_HEADER, STYLES_XML_ROOT], w;
 	if(wb.SSF && (w = write_numFmts(wb.SSF)) != null) o[o.length] = w;
 	o[o.length] = ('<fonts count="1"><font><sz val="12"/><color theme="1"/><name val="Calibri"/><family val="2"/><scheme val="minor"/></font></fonts>');
 	o[o.length] = ('<fills count="2"><fill><patternFill patternType="none"/></fill><fill><patternFill patternType="gray125"/></fill></fills>');
--- a/bits/48_stybin.js
+++ b/bits/48_stybin.js
@ -20,12 +20,12 @@ function parse_BrtFont(data, length/*:number*/, opts) {
 	out.sz = data.read_shift(2) / 20;

 	var grbit = parse_FontFlags(data, 2, opts);
-	if(grbit.fItalic) out.italic = 1;
 	if(grbit.fCondense) out.condense = 1;
 	if(grbit.fExtend) out.extend = 1;
 	if(grbit.fShadow) out.shadow = 1;
 	if(grbit.fOutline) out.outline = 1;
 	if(grbit.fStrikeout) out.strike = 1;
+	if(grbit.fItalic) out.italic = 1;

 	var bls = data.read_shift(2);
 	if(bls === 0x02BC) out.bold = 1;
@ -102,12 +102,11 @@ var XLSBFillPTNames = [
 	"gray125",
 	"gray0625"
 ];
-var rev_XLSBFillPTNames/*:EvertNumType*/;
+var rev_XLSBFillPTNames/*:EvertNumType*/ = (evert(XLSBFillPTNames)/*:any*/);
 /* TODO: gradient fill representation */
 var parse_BrtFill = parsenoop;
 function write_BrtFill(fill, o) {
 	if(!o) o = new_buf(4*3 + 8*7 + 16*1);
-	if(!rev_XLSBFillPTNames) rev_XLSBFillPTNames = (evert(XLSBFillPTNames)/*:any*/);
 	var fls/*:number*/ = rev_XLSBFillPTNames[fill.patternType];
 	if(fls == null) fls = 0x28;
 	o.write_shift(4, fls);
@ -152,8 +151,7 @@ function write_BrtXF(data, ixfeP, o) {
 	o.write_shift(2, 0); /* ixBorder */
 	o.write_shift(1, 0); /* trot */
 	o.write_shift(1, 0); /* indent */
-	var flow = 0;
-	o.write_shift(1, flow); /* flags */
+	o.write_shift(1, 0); /* flags */
 	o.write_shift(1, 0); /* flags */
 	o.write_shift(1, 0); /* xfGrbitAtr */
 	o.write_shift(1, 0);
@ -206,60 +204,58 @@ function write_BrtBeginTableStyles(cnt, defTableStyle, defPivotStyle) {
 function parse_sty_bin(data, themes, opts) {
 	var styles = {};
 	styles.NumberFmt = ([]/*:any*/);
-	for(var y in table_fmt) styles.NumberFmt[y] = table_fmt[y];
+	for(var y in SSF._table) styles.NumberFmt[y] = SSF._table[y];

 	styles.CellXf = [];
 	styles.Fonts = [];
 	var state/*:Array<string>*/ = [];
 	var pass = false;
-	recordhopper(data, function hopper_sty(val, R, RT) {
+	recordhopper(data, function hopper_sty(val, R_n, RT) {
 		switch(RT) {
-			case 0x002C: /* BrtFmt */
-				styles.NumberFmt[val[0]] = val[1]; SSF__load(val[1], val[0]);
+			case 0x002C: /* 'BrtFmt' */
+				styles.NumberFmt[val[0]] = val[1]; SSF.load(val[1], val[0]);
 				break;
-			case 0x002B: /* BrtFont */
+			case 0x002B: /* 'BrtFont' */
 				styles.Fonts.push(val);
 				if(val.color.theme != null && themes && themes.themeElements && themes.themeElements.clrScheme) {
 					val.color.rgb = rgb_tint(themes.themeElements.clrScheme[val.color.theme].rgb, val.color.tint || 0);
 				}
 				break;
-			case 0x0401: /* BrtKnownFonts */ break;
-			case 0x002D: /* BrtFill */
-				break;
-			case 0x002E: /* BrtBorder */
-				break;
-			case 0x002F: /* BrtXF */
-				if(state[state.length - 1] == 0x0269 /* BrtBeginCellXFs */) {
+			case 0x0401: /* 'BrtKnownFonts' */ break;
+			case 0x002D: /* 'BrtFill' */ break;
+			case 0x002E: /* 'BrtBorder' */ break;
+			case 0x002F: /* 'BrtXF' */
+				if(state[state.length - 1] == "BrtBeginCellXFs") {
 					styles.CellXf.push(val);
 				}
 				break;
-			case 0x0030: /* BrtStyle */
-			case 0x01FB: /* BrtDXF */
-			case 0x023C: /* BrtMRUColor */
-			case 0x01DB: /* BrtIndexedColor */
+			case 0x0030: /* 'BrtStyle' */
+			case 0x01FB: /* 'BrtDXF' */
+			case 0x023C: /* 'BrtMRUColor' */
+			case 0x01DB: /* 'BrtIndexedColor': */
 				break;

-			case 0x0493: /* BrtDXF14 */
-			case 0x0836: /* BrtDXF15 */
-			case 0x046A: /* BrtSlicerStyleElement */
-			case 0x0200: /* BrtTableStyleElement */
-			case 0x082F: /* BrtTimelineStyleElement */
-			case 0x0C00: /* BrtUid */
+			case 0x0493: /* 'BrtDXF14' */
+			case 0x0836: /* 'BrtDXF15' */
+			case 0x046A: /* 'BrtSlicerStyleElement' */
+			case 0x0200: /* 'BrtTableStyleElement' */
+			case 0x082F: /* 'BrtTimelineStyleElement' */
+			case 0x0C00: /* 'BrtUid' */
 				break;

-			case 0x0023: /* BrtFRTBegin */
+			case 0x0023: /* 'BrtFRTBegin' */
 				pass = true; break;
-			case 0x0024: /* BrtFRTEnd */
+			case 0x0024: /* 'BrtFRTEnd' */
 				pass = false; break;
-			case 0x0025: /* BrtACBegin */
-				state.push(RT); pass = true; break;
-			case 0x0026: /* BrtACEnd */
-				state.pop(); pass = false; break;
+			case 0x0025: /* 'BrtACBegin' */
+				state.push(R_n); break;
+			case 0x0026: /* 'BrtACEnd' */
+				state.pop(); break;

 			default:
-				if(R.T > 0) state.push(RT);
-				else if(R.T < 0) state.pop();
-				else if(!pass || (opts.WTF && state[state.length-1] != 0x0025 /* BrtACBegin */)) throw new Error("Unexpected record 0x" + RT.toString(16));
+				if((R_n||"").indexOf("Begin") > 0) state.push(R_n);
+				else if((R_n||"").indexOf("End") > 0) state.pop();
+				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
 		}
 	});
 	return styles;
@ -274,20 +270,20 @@ function write_FMTS_bin(ba, NF/*:?SSFTable*/) {
 	});

 	if(cnt == 0) return;
-	write_record(ba, 0x0267 /* BrtBeginFmts */, write_UInt32LE(cnt));
+	write_record(ba, "BrtBeginFmts", write_UInt32LE(cnt));
 	[[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
 		/*:: if(!NF) return; */
-		for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) write_record(ba, 0x002C /* BrtFmt */, write_BrtFmt(i, NF[i]));
+		for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) write_record(ba, "BrtFmt", write_BrtFmt(i, NF[i]));
 	});
-	write_record(ba, 0x0268 /* BrtEndFmts */);
+	write_record(ba, "BrtEndFmts");
 }

 function write_FONTS_bin(ba/*::, data*/) {
 	var cnt = 1;

 	if(cnt == 0) return;
-	write_record(ba, 0x0263 /* BrtBeginFonts */, write_UInt32LE(cnt));
-	write_record(ba, 0x002B /* BrtFont */, write_BrtFont({
+	write_record(ba, "BrtBeginFonts", write_UInt32LE(cnt));
+	write_record(ba, "BrtFont", write_BrtFont({
 		sz:12,
 		color: {theme:1},
 		name: "Calibri",
@ -295,77 +291,77 @@ function write_FONTS_bin(ba/*::, data*/) {
 		scheme: "minor"
 	}));
 	/* 1*65491BrtFont [ACFONTS] */
-	write_record(ba, 0x0264 /* BrtEndFonts */);
+	write_record(ba, "BrtEndFonts");
 }

 function write_FILLS_bin(ba/*::, data*/) {
 	var cnt = 2;

 	if(cnt == 0) return;
-	write_record(ba, 0x025B /* BrtBeginFills */, write_UInt32LE(cnt));
-	write_record(ba, 0x002D /* BrtFill */, write_BrtFill({patternType:"none"}));
-	write_record(ba, 0x002D /* BrtFill */, write_BrtFill({patternType:"gray125"}));
+	write_record(ba, "BrtBeginFills", write_UInt32LE(cnt));
+	write_record(ba, "BrtFill", write_BrtFill({patternType:"none"}));
+	write_record(ba, "BrtFill", write_BrtFill({patternType:"gray125"}));
 	/* 1*65431BrtFill */
-	write_record(ba, 0x025C /* BrtEndFills */);
+	write_record(ba, "BrtEndFills");
 }

 function write_BORDERS_bin(ba/*::, data*/) {
 	var cnt = 1;

 	if(cnt == 0) return;
-	write_record(ba, 0x0265 /* BrtBeginBorders */, write_UInt32LE(cnt));
-	write_record(ba, 0x002E /* BrtBorder */, write_BrtBorder({}));
+	write_record(ba, "BrtBeginBorders", write_UInt32LE(cnt));
+	write_record(ba, "BrtBorder", write_BrtBorder({}));
 	/* 1*65430BrtBorder */
-	write_record(ba, 0x0266 /* BrtEndBorders */);
+	write_record(ba, "BrtEndBorders");
 }

 function write_CELLSTYLEXFS_bin(ba/*::, data*/) {
 	var cnt = 1;
-	write_record(ba, 0x0272 /* BrtBeginCellStyleXFs */, write_UInt32LE(cnt));
-	write_record(ba, 0x002F /* BrtXF */, write_BrtXF({
-		numFmtId: 0,
-		fontId:   0,
-		fillId:   0,
-		borderId: 0
+	write_record(ba, "BrtBeginCellStyleXFs", write_UInt32LE(cnt));
+	write_record(ba, "BrtXF", write_BrtXF({
+		numFmtId:0,
+		fontId:0,
+		fillId:0,
+		borderId:0
 	}, 0xFFFF));
 	/* 1*65430(BrtXF *FRT) */
-	write_record(ba, 0x0273 /* BrtEndCellStyleXFs */);
+	write_record(ba, "BrtEndCellStyleXFs");
 }

 function write_CELLXFS_bin(ba, data) {
-	write_record(ba, 0x0269 /* BrtBeginCellXFs */, write_UInt32LE(data.length));
-	data.forEach(function(c) { write_record(ba, 0x002F /* BrtXF */, write_BrtXF(c,0)); });
+	write_record(ba, "BrtBeginCellXFs", write_UInt32LE(data.length));
+	data.forEach(function(c) { write_record(ba, "BrtXF", write_BrtXF(c,0)); });
 	/* 1*65430(BrtXF *FRT) */
-	write_record(ba, 0x026A /* BrtEndCellXFs */);
+	write_record(ba, "BrtEndCellXFs");
 }

 function write_STYLES_bin(ba/*::, data*/) {
 	var cnt = 1;

-	write_record(ba, 0x026B /* BrtBeginStyles */, write_UInt32LE(cnt));
-	write_record(ba, 0x0030 /* BrtStyle */, write_BrtStyle({
+	write_record(ba, "BrtBeginStyles", write_UInt32LE(cnt));
+	write_record(ba, "BrtStyle", write_BrtStyle({
 		xfId:0,
 		builtinId:0,
 		name:"Normal"
 	}));
 	/* 1*65430(BrtStyle *FRT) */
-	write_record(ba, 0x026C /* BrtEndStyles */);
+	write_record(ba, "BrtEndStyles");
 }

 function write_DXFS_bin(ba/*::, data*/) {
 	var cnt = 0;

-	write_record(ba, 0x01F9 /* BrtBeginDXFs */, write_UInt32LE(cnt));
+	write_record(ba, "BrtBeginDXFs", write_UInt32LE(cnt));
 	/* *2147483647(BrtDXF *FRT) */
-	write_record(ba, 0x01FA /* BrtEndDXFs */);
+	write_record(ba, "BrtEndDXFs");
 }

 function write_TABLESTYLES_bin(ba/*::, data*/) {
 	var cnt = 0;

-	write_record(ba, 0x01FC /* BrtBeginTableStyles */, write_BrtBeginTableStyles(cnt, "TableStyleMedium9", "PivotStyleMedium4"));
+	write_record(ba, "BrtBeginTableStyles", write_BrtBeginTableStyles(cnt, "TableStyleMedium9", "PivotStyleMedium4"));
 	/* *TABLESTYLE */
-	write_record(ba, 0x01FD /* BrtEndTableStyles */);
+	write_record(ba, "BrtEndTableStyles");
 }

 function write_COLORPALETTE_bin(/*::ba, data*/) {
@ -376,7 +372,7 @@ function write_COLORPALETTE_bin(/*::ba, data*/) {
 /* [MS-XLSB] 2.1.7.50 Styles */
 function write_sty_bin(wb, opts) {
 	var ba = buf_array();
-	write_record(ba, 0x0116 /* BrtBeginStyleSheet */);
+	write_record(ba, "BrtBeginStyleSheet");
 	write_FMTS_bin(ba, wb.SSF);
 	write_FONTS_bin(ba, wb);
 	write_FILLS_bin(ba, wb);
@ -388,6 +384,6 @@ function write_sty_bin(wb, opts) {
 	write_TABLESTYLES_bin(ba, wb);
 	write_COLORPALETTE_bin(ba, wb);
 	/* FRTSTYLESHEET*/
-	write_record(ba, 0x0117 /* BrtEndStyleSheet */);
+	write_record(ba, "BrtEndStyleSheet");
 	return ba.end();
 }
--- a/bits/49_theme.js
+++ b/bits/49_theme.js
@ -1,10 +1,5 @@
-/* Even though theme layout is dk1 lt1 dk2 lt2, true order is lt1 dk1 lt2 dk2 */
-var XLSXThemeClrScheme = [
-	'</a:lt1>', '</a:dk1>', '</a:lt2>', '</a:dk2>',
-	'</a:accent1>', '</a:accent2>', '</a:accent3>',
-	'</a:accent4>', '</a:accent5>', '</a:accent6>',
-	'</a:hlink>', '</a:folHlink>'
-];
+RELS.THEME = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme";
+
 /* 20.1.6.2 clrScheme CT_ColorScheme */
 function parse_clrScheme(t, themes, opts) {
 	themes.themeElements.clrScheme = [];
@ -48,7 +43,7 @@ function parse_clrScheme(t, themes, opts) {
 			case '<a:hlink>': case '</a:hlink>':
 			case '<a:folHlink>': case '</a:folHlink>':
 				if (y[0].charAt(1) === '/') {
-					themes.themeElements.clrScheme[XLSXThemeClrScheme.indexOf(y[0])] = color;
+					themes.themeElements.clrScheme.push(color);
 					color = {};
 				} else {
 					color.name = y[0].slice(3, y[0].length - 1);
@ -94,7 +89,7 @@ var themeltregex = /<a:themeElements([^>]*)>[\s\S]*<\/a:themeElements>/;
 /* 14.2.7 Theme Part */
 function parse_theme_xml(data/*:string*/, opts) {
 	/* 20.1.6.9 theme CT_OfficeStyleSheet */
-	if(!data || data.length === 0) data = write_theme();
+	if(!data || data.length === 0) return parse_theme_xml(write_theme());

 	var t;
 	var themes = {};
@ -102,13 +97,12 @@ function parse_theme_xml(data/*:string*/, opts) {
 	/* themeElements CT_BaseStyles */
 	if(!(t=data.match(themeltregex))) throw new Error('themeElements not found in theme');
 	parse_themeElements(t[0], themes, opts);
-	themes.raw = data;
+
 	return themes;
 }

 function write_theme(Themes, opts)/*:string*/ {
 	if(opts && opts.themeXLSX) return opts.themeXLSX;
-	if(Themes && typeof Themes.raw == "string") return Themes.raw;
 	var o = [XML_HEADER];
 	o[o.length] = '<a:theme xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" name="Office Theme">';
 	o[o.length] =  '<a:themeElements>';
--- a/bits/50_styxls.js
+++ b/bits/50_styxls.js
@ -3,10 +3,10 @@ function parse_Theme(blob, length, opts) {
 	var end = blob.l + length;
 	var dwThemeVersion = blob.read_shift(4);
 	if(dwThemeVersion === 124226) return;
-	if(!opts.cellStyles) { blob.l = end; return; }
+	if(!opts.cellStyles || !jszip) { blob.l = end; return; }
 	var data = blob.slice(blob.l);
 	blob.l = end;
-	var zip; try { zip = zip_read(data, {type: "array"}); } catch(e) { return; }
+	var zip; try { zip = new jszip(data); } catch(e) { return; }
 	var themeXML = getzipstr(zip, "theme/theme/theme1.xml", true);
 	if(!themeXML) return;
 	return parse_theme_xml(themeXML, opts);
@ -81,8 +81,7 @@ function update_xfext(xf, xfext) {
 			case 0x09: break; /* left cell border color */
 			case 0x0a: break; /* right cell border color */
 			case 0x0b: break; /* diagonal cell border color */
-			case 0x0d: /* text color */
-				break;
+			case 0x0d: break; /* text color */
 			case 0x0e: break; /* font scheme */
 			case 0x0f: break; /* indentation level */
 		}
--- a/bits/51_xlsbmeta.js
+++ b/bits/51_xlsbmeta.js
@ -1,111 +0,0 @@
-function parse_BrtMdtinfo(data, length) {
-  return {
-    flags: data.read_shift(4),
-    version: data.read_shift(4),
-    name: parse_XLWideString(data, length - 8)
-  };
-}
-function write_BrtMdtinfo(data) {
-  var o = new_buf(12 + 2 * data.name.length);
-  o.write_shift(4, data.flags);
-  o.write_shift(4, data.version);
-  write_XLWideString(data.name, o);
-  return o.slice(0, o.l);
-}
-function parse_BrtMdb(data) {
-  var out = [];
-  var cnt = data.read_shift(4);
-  while (cnt-- > 0)
-    out.push([data.read_shift(4), data.read_shift(4)]);
-  return out;
-}
-function write_BrtMdb(mdb) {
-  var o = new_buf(4 + 8 * mdb.length);
-  o.write_shift(4, mdb.length);
-  for (var i = 0; i < mdb.length; ++i) {
-    o.write_shift(4, mdb[i][0]);
-    o.write_shift(4, mdb[i][1]);
-  }
-  return o;
-}
-function write_BrtBeginEsfmd(cnt, name) {
-  var o = new_buf(8 + 2 * name.length);
-  o.write_shift(4, cnt);
-  write_XLWideString(name, o);
-  return o.slice(0, o.l);
-}
-function parse_BrtBeginEsmdb(data) {
-  data.l += 4;
-  return data.read_shift(4) != 0;
-}
-function write_BrtBeginEsmdb(cnt, cm) {
-  var o = new_buf(8);
-  o.write_shift(4, cnt);
-  o.write_shift(4, cm ? 1 : 0);
-  return o;
-}
-function parse_xlmeta_bin(data, name, _opts) {
-  var out = { Types: [], Cell: [], Value: [] };
-  var opts = _opts || {};
-  var state = [];
-  var pass = false;
-  var metatype = 2;
-  recordhopper(data, function(val, R, RT) {
-    switch (RT) {
-      case 335:
-        out.Types.push({ name: val.name });
-        break;
-      case 51:
-        val.forEach(function(r) {
-          if (metatype == 1)
-            out.Cell.push({ type: out.Types[r[0] - 1].name, index: r[1] });
-          else if (metatype == 0)
-            out.Value.push({ type: out.Types[r[0] - 1].name, index: r[1] });
-        });
-        break;
-      case 337:
-        metatype = val ? 1 : 0;
-        break;
-      case 338:
-        metatype = 2;
-        break;
-      case 35:
-        state.push(RT);
-        pass = true;
-        break;
-      case 36:
-        state.pop();
-        pass = false;
-        break;
-      default:
-        if (R.T) {
-        } else if (!pass || opts.WTF && state[state.length - 1] != 35)
-          throw new Error("Unexpected record 0x" + RT.toString(16));
-    }
-  });
-  return out;
-}
-function write_xlmeta_bin() {
-  var ba = buf_array();
-  write_record(ba, 332);
-  write_record(ba, 334, write_UInt32LE(1));
-  write_record(ba, 335, write_BrtMdtinfo({
-    name: "XLDAPR",
-    version: 12e4,
-    flags: 3496657072
-  }));
-  write_record(ba, 336);
-  write_record(ba, 339, write_BrtBeginEsfmd(1, "XLDAPR"));
-  write_record(ba, 52);
-  write_record(ba, 35, write_UInt32LE(514));
-  write_record(ba, 4096, write_UInt32LE(0));
-  write_record(ba, 4097, writeuint16(1));
-  write_record(ba, 36);
-  write_record(ba, 53);
-  write_record(ba, 340);
-  write_record(ba, 337, write_BrtBeginEsmdb(1, true));
-  write_record(ba, 51, write_BrtMdb([[1, 0]]));
-  write_record(ba, 338);
-  write_record(ba, 333);
-  return ba.end();
-}
--- a/bits/51_xlsxmeta.js
+++ b/bits/51_xlsxmeta.js
@ -1,85 +0,0 @@
-function parse_xlmeta_xml(data, name, opts) {
-  var out = { Types: [], Cell: [], Value: [] };
-  if (!data)
-    return out;
-  var pass = false;
-  var metatype = 2;
-  var lastmeta;
-  data.replace(tagregex, function(x) {
-    var y = parsexmltag(x);
-    switch (strip_ns(y[0])) {
-      case "<?xml":
-        break;
-      case "<metadata":
-      case "</metadata>":
-        break;
-      case "<metadataTypes":
-      case "</metadataTypes>":
-        break;
-      case "<metadataType":
-        out.Types.push({ name: y.name });
-        break;
-      case "</metadataType>":
-        break;
-      case "<futureMetadata":
-        for (var j = 0; j < out.Types.length; ++j)
-          if (out.Types[j].name == y.name)
-            lastmeta = out.Types[j];
-        break;
-      case "</futureMetadata>":
-        break;
-      case "<bk>":
-        break;
-      case "</bk>":
-        break;
-      case "<rc":
-        if (metatype == 1)
-          out.Cell.push({ type: out.Types[y.t - 1].name, index: +y.v });
-        else if (metatype == 0)
-          out.Value.push({ type: out.Types[y.t - 1].name, index: +y.v });
-        break;
-      case "</rc>":
-        break;
-      case "<cellMetadata":
-        metatype = 1;
-        break;
-      case "</cellMetadata>":
-        metatype = 2;
-        break;
-      case "<valueMetadata":
-        metatype = 0;
-        break;
-      case "</valueMetadata>":
-        metatype = 2;
-        break;
-      case "<extLst":
-      case "<extLst>":
-      case "</extLst>":
-      case "<extLst/>":
-        break;
-      case "<ext":
-        pass = true;
-        break;
-      case "</ext>":
-        pass = false;
-        break;
-      case "<rvb":
-        if (!lastmeta)
-          break;
-        if (!lastmeta.offsets)
-          lastmeta.offsets = [];
-        lastmeta.offsets.push(+y.i);
-        break;
-      default:
-        if (!pass && (opts == null ? void 0 : opts.WTF))
-          throw new Error("unrecognized " + y[0] + " in metadata");
-    }
-    return x;
-  });
-  return out;
-}
-function write_xlmeta_xml() {
-  var o = [XML_HEADER];
-  o.push('<metadata xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:xlrd="http://schemas.microsoft.com/office/spreadsheetml/2017/richdata" xmlns:xda="http://schemas.microsoft.com/office/spreadsheetml/2017/dynamicarray">\n  <metadataTypes count="1">\n    <metadataType name="XLDAPR" minSupportedVersion="120000" copy="1" pasteAll="1" pasteValues="1" merge="1" splitFirst="1" rowColShift="1" clearFormats="1" clearComments="1" assign="1" coerce="1" cellMeta="1"/>\n  </metadataTypes>\n  <futureMetadata name="XLDAPR" count="1">\n    <bk>\n      <extLst>\n        <ext uri="{bdbb8cdc-fa1e-496e-a857-3c3f30c029c3}">\n          <xda:dynamicArrayProperties fDynamic="1" fCollapsed="0"/>\n        </ext>\n      </extLst>\n    </bk>\n  </futureMetadata>\n  <cellMetadata count="1">\n    <bk>\n      <rc t="1" v="0"/>\n    </bk>\n  </cellMetadata>\n</metadata>');
-  return o.join("");
-}
--- a/bits/52_calcchain.js
+++ b/bits/52_calcchain.js
@ -36,14 +36,15 @@ function parse_BrtCalcChainItem$(data) {
 function parse_cc_bin(data, name, opts) {
 	var out = [];
 	var pass = false;
-	recordhopper(data, function hopper_cc(val, R, RT) {
+	recordhopper(data, function hopper_cc(val, R_n, RT) {
 		switch(RT) {
 			case 0x003F: /* 'BrtCalcChainItem$' */
 				out.push(val); break;

 			default:
-				if(R.T){/* empty */}
-				else if(!pass || opts.WTF) throw new Error("Unexpected record 0x" + RT.toString(16));
+				if((R_n||"").indexOf("Begin") > 0){/* empty */}
+				else if((R_n||"").indexOf("End") > 0){/* empty */}
+				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
 		}
 	});
 	return out;
--- a/bits/53_externlink.js
+++ b/bits/53_externlink.js
@ -1,17 +1,17 @@
 /* 18.14 Supplementary Workbook Data */
-function parse_xlink_xml(/*::data, rel, name:string, _opts*/) {
+function parse_xlink_xml(/*::data, name:string, _opts*/) {
 	//var opts = _opts || {};
 	//if(opts.WTF) throw "XLSX External Link";
 }

 /* [MS-XLSB] 2.1.7.25 External Link */
-function parse_xlink_bin(data, rel, name/*:string*/, _opts) {
+function parse_xlink_bin(data, name/*:string*/, _opts) {
 	if(!data) return data;
 	var opts = _opts || {};

 	var pass = false, end = false;

-	recordhopper(data, function xlink_parse(val, R, RT) {
+	recordhopper(data, function xlink_parse(val, R_n, RT) {
 		if(end) return;
 		switch(RT) {
 			case 0x0167: /* 'BrtSupTabs' */
@ -43,8 +43,9 @@ function parse_xlink_bin(data, rel, name/*:string*/, _opts) {
 				pass = false; break;

 			default:
-				if(R.T){/* empty */}
-				else if(!pass || opts.WTF) throw new Error("Unexpected record 0x" + RT.toString(16));
+				if((R_n||"").indexOf("Begin") > 0){/* empty */}
+				else if((R_n||"").indexOf("End") > 0){/* empty */}
+				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT.toString(16) + " " + R_n);
 		}
 	}, opts);
 }
--- a/bits/54_drawing.js
+++ b/bits/54_drawing.js
@ -1,5 +1,6 @@
+RELS.IMG = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image";
+RELS.DRAW = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/drawing";
 /* 20.5 DrawingML - SpreadsheetML Drawing */
-/* 20.5.2.35 wsDr CT_Drawing */
 function parse_drawing(data, rels/*:any*/) {
 	if(!data) return "??";
 	/*
--- a/bits/55_vml.js
+++ b/bits/55_vml.js
@ -1,57 +1,45 @@
 /* L.5.5.2 SpreadsheetML Comments + VML Schema */
-function write_vml(rId/*:number*/, comments) {
+var _shapeid = 1024;
+function write_comments_vml(rId, comments) {
 	var csize = [21600, 21600];
 	/* L.5.2.1.2 Path Attribute */
 	var bbox = ["m0,0l0",csize[1],csize[0],csize[1],csize[0],"0xe"].join(",");
 	var o = [
 		writextag("xml", null, { 'xmlns:v': XLMLNS.v, 'xmlns:o': XLMLNS.o, 'xmlns:x': XLMLNS.x, 'xmlns:mv': XLMLNS.mv }).replace(/\/>/,">"),
-		writextag("o:shapelayout", writextag("o:idmap", null, {'v:ext':"edit", 'data':rId}), {'v:ext':"edit"})
+		writextag("o:shapelayout", writextag("o:idmap", null, {'v:ext':"edit", 'data':rId}), {'v:ext':"edit"}),
+		writextag("v:shapetype", [
+			writextag("v:stroke", null, {joinstyle:"miter"}),
+			writextag("v:path", null, {gradientshapeok:"t", 'o:connecttype':"rect"})
+		].join(""), {id:"_x0000_t202", 'o:spt':202, coordsize:csize.join(","),path:bbox})
 	];
+	while(_shapeid < rId * 1000) _shapeid += 1000;

-	var _shapeid = 65536 * rId;
-
-	var _comments = comments || [];
-	if(_comments.length > 0) o.push(writextag("v:shapetype", [
-		writextag("v:stroke", null, {joinstyle:"miter"}),
-		writextag("v:path", null, {gradientshapeok:"t", 'o:connecttype':"rect"})
-	].join(""), {id:"_x0000_t202", coordsize:csize.join(","), 'o:spt':202, path:bbox}));
-
-	_comments.forEach(function(x) { ++_shapeid; o.push(write_vml_comment(x, _shapeid)); });
-	o.push('</xml>');
-	return o.join("");
-}
-
-function write_vml_comment(x, _shapeid)/*:string*/ {
-	var c = decode_cell(x[0]);
-	var fillopts = /*::(*/{'color2':"#BEFF82", 'type':"gradient"}/*:: :any)*/;
-	if(fillopts.type == "gradient") fillopts.angle = "-180";
-	var fillparm = fillopts.type == "gradient" ? writextag("o:fill", null, {type:"gradientUnscaled", 'v:ext':"view"}) : null;
-	var fillxml = writextag('v:fill', fillparm, fillopts);
-
-	var shadata = ({on:"t", 'obscured':"t"}/*:any*/);
-
-	return [
+	comments.forEach(function(x) { var c = decode_cell(x[0]);
+	o = o.concat([
 	'<v:shape' + wxt_helper({
-		id:'_x0000_s' + _shapeid,
+		id:'_x0000_s' + (++_shapeid),
 		type:"#_x0000_t202",
-		style:"position:absolute; margin-left:80pt;margin-top:5pt;width:104pt;height:64pt;z-index:10" + (x[1].hidden ? ";visibility:hidden" : "") ,
+		style:"position:absolute; margin-left:80pt;margin-top:5pt;width:104pt;height:64pt;z-index:10;visibility:hidden",
 		fillcolor:"#ECFAD4",
 		strokecolor:"#edeaa1"
 	}) + '>',
-		fillxml,
-		writextag("v:shadow", null, shadata),
+		writextag('v:fill', writextag("o:fill", null, {type:"gradientUnscaled", 'v:ext':"view"}), {'color2':"#BEFF82", 'angle':"-180", 'type':"gradient"}),
+		writextag("v:shadow", null, {on:"t", 'obscured':"t"}),
 		writextag("v:path", null, {'o:connecttype':"none"}),
 		'<v:textbox><div style="text-align:left"></div></v:textbox>',
 		'<x:ClientData ObjectType="Note">',
 			'<x:MoveWithCells/>',
 			'<x:SizeWithCells/>',
 			/* Part 4 19.4.2.3 Anchor (Anchor) */
-			writetag('x:Anchor', [c.c+1, 0, c.r+1, 0, c.c+3, 20, c.r+5, 20].join(",")),
+			writetag('x:Anchor', [c.c, 0, c.r, 0, c.c+3, 100, c.r+5, 100].join(",")),
 			writetag('x:AutoFill', "False"),
 			writetag('x:Row', String(c.r)),
 			writetag('x:Column', String(c.c)),
-			x[1].hidden ? '' : '<x:Visible/>',
+			'<x:Visible/>',
 		'</x:ClientData>',
 	'</v:shape>'
-	].join("");
+	]); });
+	o.push('</xml>');
+	return o.join("");
 }
+
--- a/bits/56_cmntcommon.js
+++ b/bits/56_cmntcommon.js
@ -1,37 +1,50 @@
-function sheet_insert_comments(sheet/*:WorkSheet*/, comments/*:Array<RawComment>*/, threaded/*:boolean*/, people/*:?Array<any>*/) {
-	var dense = sheet["!data"] != null;
-	var cell/*:Cell*/;
+RELS.CMNT = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/comments";
+
+function parse_comments(zip, dirComments, sheets, sheetRels, opts) {
+	for(var i = 0; i != dirComments.length; ++i) {
+		var canonicalpath=dirComments[i];
+		var comments=parse_cmnt(getzipdata(zip, canonicalpath.replace(/^\//,''), true), canonicalpath, opts);
+		if(!comments || !comments.length) continue;
+		// find the sheets targeted by these comments
+		var sheetNames = keys(sheets);
+		for(var j = 0; j != sheetNames.length; ++j) {
+			var sheetName = sheetNames[j];
+			var rels = sheetRels[sheetName];
+			if(rels) {
+				var rel = rels[canonicalpath];
+				if(rel) insertCommentsIntoSheet(sheetName, sheets[sheetName], comments);
+			}
+		}
+	}
+}
+
+function insertCommentsIntoSheet(sheetName, sheet, comments/*:Array<RawComment>*/) {
+	var dense = Array.isArray(sheet);
+	var cell/*:Cell*/, r;
 	comments.forEach(function(comment) {
-		var r = decode_cell(comment.ref);
 		if(dense) {
-			if(!sheet["!data"][r.r]) sheet["!data"][r.r] = [];
-			cell = sheet["!data"][r.r][r.c];
+			r = decode_cell(comment.ref);
+			if(!sheet[r.r]) sheet[r.r] = [];
+			cell = sheet[r.r][r.c];
 		} else cell = sheet[comment.ref];
 		if (!cell) {
-			cell = ({t:"z"}/*:any*/);
-			if(dense) sheet["!data"][r.r][r.c] = cell;
+			cell = {};
+			if(dense) sheet[r.r][r.c] = cell;
 			else sheet[comment.ref] = cell;
 			var range = safe_decode_range(sheet["!ref"]||"BDWGO1000001:A1");
-			if(range.s.r > r.r) range.s.r = r.r;
-			if(range.e.r < r.r) range.e.r = r.r;
-			if(range.s.c > r.c) range.s.c = r.c;
-			if(range.e.c < r.c) range.e.c = r.c;
+			var thisCell = decode_cell(comment.ref);
+			if(range.s.r > thisCell.r) range.s.r = thisCell.r;
+			if(range.e.r < thisCell.r) range.e.r = thisCell.r;
+			if(range.s.c > thisCell.c) range.s.c = thisCell.c;
+			if(range.e.c < thisCell.c) range.e.c = thisCell.c;
 			var encoded = encode_range(range);
-			sheet["!ref"] = encoded;
+			if (encoded !== sheet["!ref"]) sheet["!ref"] = encoded;
 		}

 		if (!cell.c) cell.c = [];
-		var o/*:Comment*/ = ({a: comment.author, t: comment.t, r: comment.r, T: threaded});
+		var o/*:Comment*/ = ({a: comment.author, t: comment.t, r: comment.r});
 		if(comment.h) o.h = comment.h;
-
-		/* threaded comments always override */
-		for(var i = cell.c.length - 1; i >= 0; --i) {
-			if(!threaded && cell.c[i].T) return;
-			if(threaded && !cell.c[i].T) cell.c.splice(i, 1);
-		}
-		if(threaded && people) for(i = 0; i < people.length; ++i) {
-			if(o.a == people[i].id) { o.a = people[i].name || o.a; break; }
-		}
 		cell.c.push(o);
 	});
 }
+
--- a/bits/57_cmntxml.js
+++ b/bits/57_cmntxml.js
@ -23,163 +23,35 @@ function parse_comments_xml(data/*:string*/, opts)/*:Array<RawComment>*/ {
 		var rt = !!textMatch && !!textMatch[1] && parse_si(textMatch[1]) || {r:"",t:"",h:""};
 		comment.r = rt.r;
 		if(rt.r == "<t></t>") rt.t = rt.h = "";
-		comment.t = (rt.t||"").replace(/\r\n/g,"\n").replace(/\r/g,"\n");
+		comment.t = rt.t.replace(/\r\n/g,"\n").replace(/\r/g,"\n");
 		if(opts.cellHTML) comment.h = rt.h;
 		commentList.push(comment);
 	});
 	return commentList;
 }

+var CMNT_XML_ROOT = writextag('comments', null, { 'xmlns': XMLNS.main[0] });
 function write_comments_xml(data/*::, opts*/) {
-	var o = [XML_HEADER, writextag('comments', null, { 'xmlns': XMLNS_main[0] })];
+	var o = [XML_HEADER, CMNT_XML_ROOT];

 	var iauthor/*:Array<string>*/ = [];
 	o.push("<authors>");
 	data.forEach(function(x) { x[1].forEach(function(w) { var a = escapexml(w.a);
-		if(iauthor.indexOf(a) == -1) {
-			iauthor.push(a);
-			o.push("<author>" + a + "</author>");
-		}
-		if(w.T && w.ID && iauthor.indexOf("tc=" + w.ID) == -1) {
-			iauthor.push("tc=" + w.ID);
-			o.push("<author>" + "tc=" + w.ID + "</author>");
-		}
+		if(iauthor.indexOf(a) > -1) return;
+		iauthor.push(a);
+		o.push("<author>" + a + "</author>");
 	}); });
-	if(iauthor.length == 0) { iauthor.push("SheetJ5"); o.push("<author>SheetJ5</author>"); }
 	o.push("</authors>");
 	o.push("<commentList>");
 	data.forEach(function(d) {
-		/* 18.7.3 CT_Comment */
-		var lastauthor = 0, ts = [], tcnt = 0;
-		if(d[1][0] && d[1][0].T && d[1][0].ID) lastauthor = iauthor.indexOf("tc=" + d[1][0].ID);
 		d[1].forEach(function(c) {
-			if(c.a) lastauthor = iauthor.indexOf(escapexml(c.a));
-			if(c.T) ++tcnt;
-			ts.push(c.t == null ? "" : escapexml(c.t));
-		});
-		if(tcnt === 0) {
-			d[1].forEach(function(c) {
-				o.push('<comment ref="' + d[0] + '" authorId="' + iauthor.indexOf(escapexml(c.a)) + '"><text>');
-				o.push(writetag("t", c.t == null ? "" : escapexml(c.t)));
-				o.push('</text></comment>');
-			});
-		} else {
-			/* based on Threaded Comments -> Comments projection */
-			o.push('<comment ref="' + d[0] + '" authorId="' + lastauthor + '"><text>');
-			var t = "Comment:\n    " + (ts[0]) + "\n";
-			for(var i = 1; i < ts.length; ++i) t += "Reply:\n    " + ts[i] + "\n";
-			o.push(writetag("t", escapexml(t)));
+			/* 18.7.3 CT_Comment */
+			o.push('<comment ref="' + d[0] + '" authorId="' + iauthor.indexOf(escapexml(c.a)) + '"><text>');
+			o.push(writetag("t", c.t == null ? "" : c.t));
 			o.push('</text></comment>');
-		}
+		});
 	});
 	o.push("</commentList>");
 	if(o.length>2) { o[o.length] = ('</comments>'); o[1]=o[1].replace("/>",">"); }
 	return o.join("");
 }
-
-/* [MS-XLSX] 2.1.17 */
-function parse_tcmnt_xml(data/*:string*/, opts)/*:Array<RawComment>*/ {
-	var out = [];
-	var pass = false, comment = {}, tidx = 0;
-	data.replace(tagregex, function xml_tcmnt(x, idx) {
-		var y/*:any*/ = parsexmltag(x);
-		switch(strip_ns(y[0])) {
-			case '<?xml': break;
-
-			/* 2.6.207 ThreadedComments CT_ThreadedComments */
-			case '<ThreadedComments': break;
-			case '</ThreadedComments>': break;
-
-			/* 2.6.205 threadedComment CT_ThreadedComment */
-			case '<threadedComment': comment = {author: y.personId, guid: y.id, ref: y.ref, T: 1}; break;
-			case '</threadedComment>': if(comment.t != null) out.push(comment); break;
-
-			case '<text>': case '<text': tidx = idx + x.length; break;
-			case '</text>': comment.t = data.slice(tidx, idx).replace(/\r\n/g, "\n").replace(/\r/g, "\n"); break;
-
-			/* 2.6.206 mentions CT_ThreadedCommentMentions TODO */
-			case '<mentions': case '<mentions>': pass = true; break;
-			case '</mentions>': pass = false; break;
-
-			/* 2.6.202 mention CT_Mention TODO */
-
-			/* 18.2.10 extLst CT_ExtensionList ? */
-			case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
-			/* 18.2.7  ext CT_Extension + */
-			case '<ext': pass=true; break;
-			case '</ext>': pass=false; break;
-
-			default: if(!pass && opts.WTF) throw new Error('unrecognized ' + y[0] + ' in threaded comments');
-		}
-		return x;
-	});
-	return out;
-}
-
-function write_tcmnt_xml(comments, people, opts) {
-	var o = [XML_HEADER, writextag('ThreadedComments', null, { 'xmlns': XMLNS.TCMNT }).replace(/[\/]>/, ">")];
-	comments.forEach(function(carr) {
-		var rootid = "";
-		(carr[1] || []).forEach(function(c, idx) {
-			if(!c.T) { delete c.ID; return; }
-			if(c.a && people.indexOf(c.a) == -1) people.push(c.a);
-			var tcopts = {
-				ref: carr[0],
-				id: "{54EE7951-7262-4200-6969-" + ("000000000000" + opts.tcid++).slice(-12) + "}"
-			};
-			if(idx == 0) rootid = tcopts.id;
-			else tcopts.parentId = rootid;
-			c.ID = tcopts.id;
-			if(c.a) tcopts.personId = "{54EE7950-7262-4200-6969-" + ("000000000000" + people.indexOf(c.a)).slice(-12) + "}";
-			o.push(writextag('threadedComment', writetag('text', c.t||""), tcopts));
-		});
-	});
-	o.push('</ThreadedComments>');
-	return o.join("");
-}
-
-/* [MS-XLSX] 2.1.18 */
-function parse_people_xml(data/*:string*/, opts) {
-	var out = [];
-	var pass = false;
-	data.replace(tagregex, function xml_tcmnt(x) {
-		var y/*:any*/ = parsexmltag(x);
-		switch(strip_ns(y[0])) {
-			case '<?xml': break;
-
-			/* 2.4.85 personList CT_PersonList */
-			case '<personList': break;
-			case '</personList>': break;
-
-			/* 2.6.203 person CT_Person TODO: providers */
-			case '<person': out.push({name: y.displayname, id: y.id }); break;
-			case '</person>': break;
-
-			/* 18.2.10 extLst CT_ExtensionList ? */
-			case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
-			/* 18.2.7  ext CT_Extension + */
-			case '<ext': pass=true; break;
-			case '</ext>': pass=false; break;
-
-			default: if(!pass && opts.WTF) throw new Error('unrecognized ' + y[0] + ' in threaded comments');
-		}
-		return x;
-	});
-	return out;
-}
-function write_people_xml(people/*, opts*/) {
-	var o = [XML_HEADER, writextag('personList', null, {
-		'xmlns': XMLNS.TCMNT,
-		'xmlns:x': XMLNS_main[0]
-	}).replace(/[\/]>/, ">")];
-	people.forEach(function(person, idx) {
-		o.push(writextag('person', null, {
-			displayName: person,
-			id: "{54EE7950-7262-4200-6969-" + ("000000000000" + idx).slice(-12) + "}",
-			userId: person,
-			providerId: "None"
-		}));
-	});
-	o.push("</personList>");
-	return o.join("");
-}
--- a/bits/58_cmntbin.js
+++ b/bits/58_cmntbin.js
@ -29,7 +29,7 @@ function parse_comments_bin(data, opts)/*:Array<RawComment>*/ {
 	var authors/*:Array<string>*/ = [];
 	var c = {};
 	var pass = false;
-	recordhopper(data, function hopper_cmnt(val, R, RT) {
+	recordhopper(data, function hopper_cmnt(val, R_n, RT) {
 		switch(RT) {
 			case 0x0278: /* 'BrtCommentAuthor' */
 				authors.push(val); break;
@ -39,8 +39,8 @@ function parse_comments_bin(data, opts)/*:Array<RawComment>*/ {
 				c.t = val.t; c.h = val.h; c.r = val.r; break;
 			case 0x027C: /* 'BrtEndComment' */
 				c.author = authors[c.iauthor];
-				delete (c/*:any*/).iauthor;
-				if(opts.sheetRows && c.rfx && opts.sheetRows <= c.rfx.r) break;
+				delete c.iauthor;
+				if(opts.sheetRows && opts.sheetRows <= c.rfx.r) break;
 				if(!c.t) c.t = "";
 				delete c.rfx; out.push(c); break;

@ -56,8 +56,9 @@ function parse_comments_bin(data, opts)/*:Array<RawComment>*/ {


 			default:
-				if(R.T){/* empty */}
-				else if(!pass || opts.WTF) throw new Error("Unexpected record 0x" + RT.toString(16));
+				if((R_n||"").indexOf("Begin") > 0){/* empty */}
+				else if((R_n||"").indexOf("End") > 0){/* empty */}
+				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
 		}
 	});
 	return out;
@ -66,31 +67,31 @@ function parse_comments_bin(data, opts)/*:Array<RawComment>*/ {
 function write_comments_bin(data/*::, opts*/) {
 	var ba = buf_array();
 	var iauthor/*:Array<string>*/ = [];
-	write_record(ba, 0x0274 /* BrtBeginComments */);
+	write_record(ba, "BrtBeginComments");

-	write_record(ba, 0x0276 /* BrtBeginCommentAuthors */);
+	write_record(ba, "BrtBeginCommentAuthors");
 	data.forEach(function(comment) {
 		comment[1].forEach(function(c) {
 			if(iauthor.indexOf(c.a) > -1) return;
 			iauthor.push(c.a.slice(0,54));
-			write_record(ba, 0x0278 /* BrtCommentAuthor */, write_BrtCommentAuthor(c.a));
+			write_record(ba, "BrtCommentAuthor", write_BrtCommentAuthor(c.a));
 		});
 	});
-	write_record(ba, 0x0277 /* BrtEndCommentAuthors */);
+	write_record(ba, "BrtEndCommentAuthors");

-	write_record(ba, 0x0279 /* BrtBeginCommentList */);
+	write_record(ba, "BrtBeginCommentList");
 	data.forEach(function(comment) {
 		comment[1].forEach(function(c) {
 			c.iauthor = iauthor.indexOf(c.a);
 			var range = {s:decode_cell(comment[0]),e:decode_cell(comment[0])};
-			write_record(ba, 0x027B /* BrtBeginComment */, write_BrtBeginComment([range, c]));
-			if(c.t && c.t.length > 0) write_record(ba, 0x027D /* BrtCommentText */, write_BrtCommentText(c));
-			write_record(ba, 0x027C /* BrtEndComment */);
+			write_record(ba, "BrtBeginComment", write_BrtBeginComment([range, c]));
+			if(c.t && c.t.length > 0) write_record(ba, "BrtCommentText", write_BrtCommentText(c));
+			write_record(ba, "BrtEndComment");
 			delete c.iauthor;
 		});
 	});
-	write_record(ba, 0x027A /* BrtEndCommentList */);
+	write_record(ba, "BrtEndCommentList");

-	write_record(ba, 0x0275 /* BrtEndComments */);
+	write_record(ba, "BrtEndComments");
 	return ba.end();
 }
--- a/bits/59_vba.js
+++ b/bits/59_vba.js
@ -1,21 +1,21 @@
 var CT_VBA = "application/vnd.ms-office.vbaProject";
-function make_vba_xls(cfb) {
-  var newcfb = CFB.utils.cfb_new({ root: "R" });
-  cfb.FullPaths.forEach(function(p, i) {
-    if (p.slice(-1) === "/" || !p.match(/_VBA_PROJECT_CUR/))
-      return;
-    var newpath = p.replace(/^[^\/]*/, "R").replace(/\/_VBA_PROJECT_CUR\u0000*/, "");
-    CFB.utils.cfb_add(newcfb, newpath, cfb.FileIndex[i].content);
-  });
-  return CFB.write(newcfb);
+function make_vba_xls(cfb/*:CFBContainer*/) {
+	var newcfb = CFB.utils.cfb_new({root:"R"});
+	cfb.FullPaths.forEach(function(p, i) {
+		if(p.slice(-1) === "/" || !p.match(/_VBA_PROJECT_CUR/)) return;
+		var newpath = p.replace(/^[^\/]*/,"R").replace(/\/_VBA_PROJECT_CUR\u0000*/, "");
+		CFB.utils.cfb_add(newcfb, newpath, cfb.FileIndex[i].content);
+	});
+	return CFB.write(newcfb);
 }
-function fill_vba_xls(cfb, vba) {
-  vba.FullPaths.forEach(function(p, i) {
-    if (i == 0)
-      return;
-    var newpath = p.replace(/[^\/]*[\/]/, "/_VBA_PROJECT_CUR/");
-    if (newpath.slice(-1) !== "/")
-      CFB.utils.cfb_add(cfb, newpath, vba.FileIndex[i].content);
-  });
+
+function fill_vba_xls(cfb/*:CFBContainer*/, vba/*:CFBContainer*/)/*:void*/ {
+	vba.FullPaths.forEach(function(p, i) {
+		if(i == 0) return;
+		var newpath = p.replace(/[^\/]*[\/]/, "/_VBA_PROJECT_CUR/");
+		if(newpath.slice(-1) !== "/") CFB.utils.cfb_add(cfb, newpath, vba.FileIndex[i].content);
+	});
 }
-var VBAFMTS = ["xlsb", "xlsm", "xlam", "biff8", "xla"];
+
+var VBAFMTS = [ "xlsb", "xlsm", "xlam", "biff8", "xla" ];
+
--- a/bits/60_macrovba.js
+++ b/bits/60_macrovba.js
@ -1,3 +1,6 @@
+RELS.DS = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/dialogsheet";
+RELS.MS = "http://schemas.microsoft.com/office/2006/relationships/xlMacrosheet";
+
 /* macro and dialog sheet stubs */
 function parse_ds_bin(/*::data:any, opts, idx:number, rels, wb, themes, styles*/)/*:Worksheet*/ { return {'!type':'dialog'}; }
 function parse_ds_xml(/*::data:any, opts, idx:number, rels, wb, themes, styles*/)/*:Worksheet*/ { return {'!type':'dialog'}; }
--- a/bits/61_fcommon.js
+++ b/bits/61_fcommon.js
@ -1,20 +1,13 @@
 /* TODO: it will be useful to parse the function str */
-var rc_to_a1 = /*#__PURE__*/(function(){
-	var rcregex = /(^|[^A-Za-z_])R(\[?-?\d+\]|[1-9]\d*|)C(\[?-?\d+\]|[1-9]\d*|)(?![A-Za-z0-9_])/g;
+var rc_to_a1 = (function(){
+	var rcregex = /(^|[^A-Za-z])R(\[?)(-?\d+|)\]?C(\[?)(-?\d+|)\]?/g;
 	var rcbase/*:Cell*/ = ({r:0,c:0}/*:any*/);
-	function rcfunc($$,$1,$2,$3) {
+	function rcfunc($$,$1,$2,$3,$4,$5) {
+		var R = $3.length>0?parseInt($3,10)|0:0, C = $5.length>0?parseInt($5,10)|0:0;
+		if(C<0 && $4.length === 0) C=0;
 		var cRel = false, rRel = false;
-
-		if($2.length == 0) rRel = true;
-		else if($2.charAt(0) == "[") { rRel = true; $2 = $2.slice(1, -1); }
-
-		if($3.length == 0) cRel = true;
-		else if($3.charAt(0) == "[") { cRel = true; $3 = $3.slice(1, -1); }
-
-		var R = $2.length>0?parseInt($2,10)|0:0, C = $3.length>0?parseInt($3,10)|0:0;
-
-		if(cRel) C += rcbase.c; else --C;
-		if(rRel) R += rcbase.r; else --R;
+		if($4.length > 0 || $5.length == 0) cRel = true; if(cRel) C += rcbase.c; else --C;
+		if($2.length > 0 || $3.length == 0) rRel = true; if(rRel) R += rcbase.r; else --R;
 		return $1 + (cRel ? "" : "$") + encode_col(C) + (rRel ? "" : "$") + encode_row(R);
 	}
 	return function rc_to_a1(fstr/*:string*/, base/*:Cell*/)/*:string*/ {
@ -23,14 +16,14 @@ var rc_to_a1 = /*#__PURE__*/(function(){
 	};
 })();

-var crefregex = /(^|[^._A-Z0-9])([$]?)([A-Z]{1,2}|[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D])([$]?)(10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})(?![_.\(A-Za-z0-9])/g;
-var a1_to_rc = /*#__PURE__*/(function(){
+var crefregex = /(^|[^._A-Z0-9])([$]?)([A-Z]{1,2}|[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D])([$]?)([1-9]\d{0,5}|10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6])(?![_.\(A-Za-z0-9])/g;
+var a1_to_rc =(function(){
 	return function a1_to_rc(fstr/*:string*/, base/*:CellAddress*/) {
 		return fstr.replace(crefregex, function($0, $1, $2, $3, $4, $5) {
 			var c = decode_col($3) - ($2 ? 0 : base.c);
 			var r = decode_row($5) - ($4 ? 0 : base.r);
-			var R = $4 == "$" ? (r+1) : (r == 0 ? "" : "[" + r + "]");
-			var C = $2 == "$" ? (c+1) : (c == 0 ? "" : "[" + c + "]");
+			var R = (r == 0 ? "" : !$4 ? "[" + r + "]" : (r+1));
+			var C = (c == 0 ? "" : !$2 ? "[" + c + "]" : (c+1));
 			return $1 + "R" + R + "C" + C;
 		});
 	};
--- a/bits/62_fxls.js
+++ b/bits/62_fxls.js
@ -572,6 +572,7 @@ var PtgDupes = {
 	/*::[*/0x5C/*::]*/: 0x3C, /*::[*/0x7C/*::]*/: 0x3C,
 	/*::[*/0x5D/*::]*/: 0x3D, /*::[*/0x7D/*::]*/: 0x3D
 };
+(function(){for(var y in PtgDupes) PtgTypes[y] = PtgTypes[PtgDupes[y]];})();

 var Ptg18 = {
 	/*::[*/0x01/*::]*/: { n:'PtgElfLel', f:parse_PtgElfLel },
@ -596,12 +597,12 @@ var Ptg19 = {
 	/*::[*/0x08/*::]*/: { n:'PtgAttrGoto', f:parse_PtgAttrGoto },
 	/*::[*/0x10/*::]*/: { n:'PtgAttrSum', f:parse_PtgAttrSum },
 	/*::[*/0x20/*::]*/: { n:'PtgAttrBaxcel', f:parse_PtgAttrBaxcel },
-	/*::[*/0x21/*::]*/: { n:'PtgAttrBaxcel', f:parse_PtgAttrBaxcel },
 	/*::[*/0x40/*::]*/: { n:'PtgAttrSpace', f:parse_PtgAttrSpace },
 	/*::[*/0x41/*::]*/: { n:'PtgAttrSpaceSemi', f:parse_PtgAttrSpaceSemi },
 	/*::[*/0x80/*::]*/: { n:'PtgAttrIfError', f:parse_PtgAttrIfError },
 	/*::[*/0xFF/*::]*/: {}
 };
+Ptg19[0x21] = Ptg19[0x20];

 /* [MS-XLS] 2.5.198.103 ; [MS-XLSB] 2.5.97.87 */
 function parse_RgbExtra(blob, length, rgce, opts) {
@ -645,7 +646,7 @@ function parse_Rgce(blob, length, opts) {
 	while(target != blob.l) {
 		length = target - blob.l;
 		id = blob[blob.l];
-		R = PtgTypes[id] || PtgTypes[PtgDupes[id]];
+		R = PtgTypes[id];
 		if(id === 0x18 || id === 0x19) R = (id === 0x18 ? Ptg18 : Ptg19)[blob[blob.l + 1]];
 		if(!R || !R.f) { /*ptgs.push*/(parsenoop(blob, length)); }
 		else { ptgs.push([R.n, R.f(blob, length, opts)]); }
@ -687,21 +688,16 @@ var PtgBinOp = {
 	PtgPower: "^",
 	PtgSub: "-"
 };
-
-// TODO: explore space
-function make_3d_range(start, end) {
-	var s = start.lastIndexOf("!"), e = end.lastIndexOf("!");
-	if(s == -1 && e == -1) return start + ":" + end;
-	if(s > 0 && e > 0 && start.slice(0, s).toLowerCase() == end.slice(0, e).toLowerCase()) return start + ":" + end.slice(e+1);
-	console.error("Cannot hydrate range", start, end);
-	return start + ":" + end;
+function formula_quote_sheet_name(sname/*:string*/, opts)/*:string*/ {
+	if(!sname && !(opts && opts.biff <= 5 && opts.biff >= 2)) throw new Error("empty sheet name");
+	if(sname.indexOf(" ") > -1) return "'" + sname + "'";
+	return sname;
 }
-
 function get_ixti_raw(supbooks, ixti/*:number*/, opts)/*:string*/ {
 	if(!supbooks) return "SH33TJSERR0";
-	if(opts.biff > 8 && (!supbooks.XTI || !supbooks.XTI[ixti])) return supbooks.SheetNames[ixti];
 	if(!supbooks.XTI) return "SH33TJSERR6";
 	var XTI = supbooks.XTI[ixti];
+	if(opts.biff > 8 && !supbooks.XTI[ixti]) return supbooks.SheetNames[ixti];
 	if(opts.biff < 8) {
 		if(ixti > 10000) ixti-= 65536;
 		if(ixti < 0) ixti = -ixti;
@ -724,7 +720,7 @@ function get_ixti_raw(supbooks, ixti/*:number*/, opts)/*:string*/ {
 		case 0x0401:
 			o = XTI[1] == -1 ? "#REF" : (supbooks.SheetNames[XTI[1]] || "SH33TJSERR3");
 			return XTI[1] == XTI[2] ? o : o + ":" + supbooks.SheetNames[XTI[2]];
-		case 0x3A01: return supbooks[XTI[0]].slice(1).map(function(name) { return name.Name; }).join(";;"); //return "SH33TJSERR8";
+		case 0x3A01: return "SH33TJSERR8";
 		default:
 			if(!supbooks[XTI[0]][0][3]) return "SH33TJSERR2";
 			o = XTI[1] == -1 ? "#REF" : (supbooks[XTI[0]][0][3][XTI[1]] || "SH33TJSERR4");
@ -732,8 +728,7 @@ function get_ixti_raw(supbooks, ixti/*:number*/, opts)/*:string*/ {
 	}
 }
 function get_ixti(supbooks, ixti/*:number*/, opts)/*:string*/ {
-	var ixtiraw = get_ixti_raw(supbooks, ixti, opts);
-	return ixtiraw == "#REF" ? ixtiraw : formula_quote_sheet_name(ixtiraw, opts);
+	return formula_quote_sheet_name(get_ixti_raw(supbooks, ixti, opts), opts);
 }
 function stringify_formula(formula/*Array<any>*/, range, cell/*:any*/, supbooks, opts)/*:string*/ {
 	var biff = (opts && opts.biff) || 8;
@ -793,7 +788,7 @@ function stringify_formula(formula/*Array<any>*/, range, cell/*:any*/, supbooks,
 				break;
 			case 'PtgRange': /* [MS-XLS] 2.5.198.83 */
 				e1 = stack.pop(); e2 = stack.pop();
-				stack.push(make_3d_range(e2,e1));
+				stack.push(e2+":"+e1);
 				break;

 			case 'PtgAttrChoose': /* [MS-XLS] 2.5.198.34 */
@ -841,7 +836,7 @@ function stringify_formula(formula/*Array<any>*/, range, cell/*:any*/, supbooks,
 				stack.push(String(f[1])); break;
 			case 'PtgStr': /* [MS-XLS] 2.5.198.89 */
 				// $FlowIgnore
-				stack.push('"' + f[1].replace(/"/g, '""') + '"'); break;
+				stack.push('"' + f[1] + '"'); break;
 			case 'PtgErr': /* [MS-XLS] 2.5.198.57 */
 				stack.push(/*::String(*/f[1]/*::)*/); break;
 			case 'PtgAreaN': /* [MS-XLS] 2.5.198.31 TODO */
@ -870,15 +865,14 @@ function stringify_formula(formula/*Array<any>*/, range, cell/*:any*/, supbooks,
 				nameidx = (f[1][2]/*:any*/);
 				var lbl = (supbooks.names||[])[nameidx-1] || (supbooks[0]||[])[nameidx];
 				var name = lbl ? lbl.Name : "SH33TJSNAME" + String(nameidx);
-				/* [MS-XLSB] 2.5.97.10 Ftab -- last verified 20220204 */
-				if(name && name.slice(0,6) == "_xlfn." && !opts.xlfn) name = name.slice(6);
+				if(name in XLSXFutureFunctions) name = XLSXFutureFunctions[name];
 				stack.push(name);
 				break;

 			case 'PtgNameX': /* [MS-XLS] 2.5.198.77 ; [MS-XLSB] 2.5.97.61 TODO: revisions */
 				/* f[1] = type, ixti, nameindex */
 				var bookidx/*:number*/ = (f[1][1]/*:any*/); nameidx = (f[1][2]/*:any*/); var externbook;
-				/* TODO: Properly handle missing values -- this should be using get_ixti_raw primarily */
+				/* TODO: Properly handle missing values */
 				if(opts.biff <= 5) {
 					if(bookidx < 0) bookidx = -bookidx;
 					if(supbooks[bookidx]) externbook = supbooks[bookidx][nameidx];
@ -893,11 +887,7 @@ function stringify_formula(formula/*Array<any>*/, range, cell/*:any*/, supbooks,
 					else o = supbooks.SheetNames[nameidx-1]+ "!";
 					if(supbooks[bookidx] && supbooks[bookidx][nameidx]) o += supbooks[bookidx][nameidx].Name;
 					else if(supbooks[0] && supbooks[0][nameidx]) o += supbooks[0][nameidx].Name;
-					else {
-						var ixtidata = (get_ixti_raw(supbooks, bookidx, opts)||"").split(";;");
-						if(ixtidata[nameidx - 1]) o = ixtidata[nameidx - 1]; // TODO: confirm this is correct
-						else o += "SH33TJSERRX";
-					}
+					else o += "SH33TJSERRX";
 					stack.push(o);
 					break;
 				}
@ -938,7 +928,8 @@ function stringify_formula(formula/*Array<any>*/, range, cell/*:any*/, supbooks,
 				if(supbooks.sharedf[encode_cell(c)]) {
 					var parsedf = (supbooks.sharedf[encode_cell(c)]);
 					stack.push(stringify_formula(parsedf, _range, q, supbooks, opts));
-				} else {
+				}
+				else {
 					var fnd = false;
 					for(e1=0;e1!=supbooks.arrayf.length; ++e1) {
 						/* TODO: should be something like range_has */
@ -1041,7 +1032,6 @@ function stringify_formula(formula/*Array<any>*/, range, cell/*:any*/, supbooks,
 		}
 	}
 	if(stack.length > 1 && opts.WTF) throw new Error("bad formula stack");
-	if(stack[0] == "TRUE") return true; if(stack[0] == "FALSE") return false;
 	return stack[0];
 }

--- a/bits/63_fbin.js
+++ b/bits/63_fbin.js
@ -51,19 +51,6 @@ function parse_FormulaValue(blob/*::, length*/) {
 	}
 	return [];
 }
-function write_FormulaValue(value) {
-	if(value == null) {
-		// Blank String Value
-		var o = new_buf(8);
-		o.write_shift(1, 0x03);
-		o.write_shift(1, 0);
-		o.write_shift(2, 0);
-		o.write_shift(2, 0);
-		o.write_shift(2, 0xFFFF);
-		return o;
-	} else if(typeof value == "number") return write_Xnum(value);
-	return write_Xnum(0);
-}

 /* [MS-XLS] 2.4.127 TODO */
 function parse_Formula(blob, length, opts) {
@ -81,27 +68,6 @@ function parse_Formula(blob, length, opts) {
 	var cbf = parse_XLSCellParsedFormula(blob, end - blob.l, opts);
 	return {cell:cell, val:val[0], formula:cbf, shared: (flags >> 3) & 1, tt:val[1]};
 }
-function write_Formula(cell/*:Cell*/, R/*:number*/, C/*:number*/, opts, os/*:number*/) {
-	// Cell
-	var o1 = write_XLSCell(R, C, os);
-
-	// FormulaValue
-	var o2 = write_FormulaValue(cell.v);
-
-	// flags + cache
-	var o3 = new_buf(6);
-	var flags = 0x01 | 0x20;
-	o3.write_shift(2, flags);
-	o3.write_shift(4, 0);
-
-	// CellParsedFormula
-	var bf = new_buf(cell.bf.length);
-	for(var i = 0; i < cell.bf.length; ++i) bf[i] = cell.bf[i];
-
-	var out = bconcat([o1, o2, o3, bf]);
-	return out;
-}
-

 /* XLSB Parsed Formula records have the same shape */
 function parse_XLSBParsedFormula(data, length, opts) {
@ -116,217 +82,7 @@ function parse_XLSBParsedFormula(data, length, opts) {
 var parse_XLSBArrayParsedFormula = parse_XLSBParsedFormula;
 /* [MS-XLSB] 2.5.97.4 CellParsedFormula */
 var parse_XLSBCellParsedFormula = parse_XLSBParsedFormula;
-/* [MS-XLSB] 2.5.97.8 DVParsedFormula */
-//var parse_XLSBDVParsedFormula = parse_XLSBParsedFormula;
-/* [MS-XLSB] 2.5.97.9 FRTParsedFormula */
-//var parse_XLSBFRTParsedFormula = parse_XLSBParsedFormula2;
 /* [MS-XLSB] 2.5.97.12 NameParsedFormula */
 var parse_XLSBNameParsedFormula = parse_XLSBParsedFormula;
 /* [MS-XLSB] 2.5.97.98 SharedParsedFormula */
 var parse_XLSBSharedParsedFormula = parse_XLSBParsedFormula;
-
-/* Writes a PtgNum or PtgInt */
-function write_XLSBFormulaNum(val/*:number*/) {
-	if((val | 0) == val && val < Math.pow(2,16) && val >= 0) {
-		var oint = new_buf(11);
-		oint.write_shift(4, 3);
-		oint.write_shift(1, 0x1e);
-		oint.write_shift(2, val);
-		oint.write_shift(4, 0);
-		return oint;
-	}
-
-	var num = new_buf(17);
-	num.write_shift(4, 11);
-	num.write_shift(1, 0x1f);
-	num.write_shift(8, val);
-	num.write_shift(4, 0);
-	return num;
-}
-/* Writes a PtgErr */
-function write_XLSBFormulaErr(val/*:number*/) {
-	var oint = new_buf(10);
-	oint.write_shift(4, 2);
-	oint.write_shift(1, 0x1C);
-	oint.write_shift(1, val);
-	oint.write_shift(4, 0);
-	return oint;
-}
-/* Writes a PtgBool */
-function write_XLSBFormulaBool(val/*:boolean*/) {
-	var oint = new_buf(10);
-	oint.write_shift(4, 2);
-	oint.write_shift(1, 0x1D);
-	oint.write_shift(1, val?1:0);
-	oint.write_shift(4, 0);
-	return oint;
-}
-
-/* Writes a PtgStr */
-function write_XLSBFormulaStr(val/*:string*/) {
-	var preamble = new_buf(7);
-	preamble.write_shift(4, 3 + 2 * val.length);
-	preamble.write_shift(1, 0x17);
-	preamble.write_shift(2, val.length);
-
-	var body = new_buf(2 * val.length);
-	body.write_shift(2 * val.length, val, "utf16le");
-
-	var postamble = new_buf(4);
-	postamble.write_shift(4, 0);
-
-	return bconcat([preamble, body, postamble]);
-}
-
-/* Writes a PtgRef */
-function write_XLSBFormulaRef(str) {
-	var cell = decode_cell(str);
-	var out = new_buf(15);
-	out.write_shift(4, 7);
-	out.write_shift(1, 0x04 | ((1)<<5));
-	out.write_shift(4, cell.r);
-	out.write_shift(2, cell.c | ((str.charAt(0) == "$" ? 0 : 1)<<14) | ((str.match(/\$\d/) ? 0 : 1)<<15)); // <== ColRelShort
-	out.write_shift(4, 0);
-
-	return out;
-}
-
-/* Writes a PtgRef3d */
-function write_XLSBFormulaRef3D(str, wb) {
-	var lastbang = str.lastIndexOf("!");
-	var sname = str.slice(0, lastbang);
-	str = str.slice(lastbang+1);
-	var cell = decode_cell(str);
-	if(sname.charAt(0) == "'") sname = sname.slice(1, -1).replace(/''/g, "'");
-
-	var out = new_buf(17);
-	out.write_shift(4, 9);
-	out.write_shift(1, 0x1A | ((1)<<5));
-	out.write_shift(2, 2 + wb.SheetNames.map(function(n) { return n.toLowerCase(); }).indexOf(sname.toLowerCase()));
-	out.write_shift(4, cell.r);
-	out.write_shift(2, cell.c | ((str.charAt(0) == "$" ? 0 : 1)<<14) | ((str.match(/\$\d/) ? 0 : 1)<<15)); // <== ColRelShort
-	out.write_shift(4, 0);
-
-	return out;
-}
-
-/* Writes a PtgRefErr3d */
-function write_XLSBFormulaRefErr3D(str, wb) {
-	var lastbang = str.lastIndexOf("!");
-	var sname = str.slice(0, lastbang);
-	str = str.slice(lastbang+1);
-	if(sname.charAt(0) == "'") sname = sname.slice(1, -1).replace(/''/g, "'");
-
-	var out = new_buf(17);
-	out.write_shift(4, 9);
-	out.write_shift(1, 0x1C | ((1)<<5));
-	out.write_shift(2, 2 + wb.SheetNames.map(function(n) { return n.toLowerCase(); }).indexOf(sname.toLowerCase()));
-	out.write_shift(4, 0);
-	out.write_shift(2, 0); // <== ColRelShort
-	out.write_shift(4, 0);
-
-	return out;
-}
-
-/* Writes a single sheet range [PtgRef PtgRef PtgRange] */
-function write_XLSBFormulaRange(_str) {
-	var parts = _str.split(":"), str = parts[0];
-
-	var out = new_buf(23);
-	out.write_shift(4, 15);
-
-	/* start cell */
-	str = parts[0]; var cell = decode_cell(str);
-	out.write_shift(1, 0x04 | ((1)<<5));
-	out.write_shift(4, cell.r);
-	out.write_shift(2, cell.c | ((str.charAt(0) == "$" ? 0 : 1)<<14) | ((str.match(/\$\d/) ? 0 : 1)<<15)); // <== ColRelShort
-	out.write_shift(4, 0);
-
-	/* end cell */
-	str = parts[1]; cell = decode_cell(str);
-	out.write_shift(1, 0x04 | ((1)<<5));
-	out.write_shift(4, cell.r);
-	out.write_shift(2, cell.c | ((str.charAt(0) == "$" ? 0 : 1)<<14) | ((str.match(/\$\d/) ? 0 : 1)<<15)); // <== ColRelShort
-	out.write_shift(4, 0);
-
-	/* PtgRange */
-	out.write_shift(1, 0x11);
-
-	out.write_shift(4, 0);
-
-	return out;
-}
-
-/* Writes a range with explicit sheet name [PtgRef3D PtgRef3D PtgRange] */
-function write_XLSBFormulaRangeWS(_str, wb) {
-	var lastbang = _str.lastIndexOf("!");
-	var sname = _str.slice(0, lastbang);
-	_str = _str.slice(lastbang+1);
-	if(sname.charAt(0) == "'") sname = sname.slice(1, -1).replace(/''/g, "'");
-	var parts = _str.split(":"); str = parts[0];
-
-	var out = new_buf(27);
-	out.write_shift(4, 19);
-
-	/* start cell */
-	var str = parts[0], cell = decode_cell(str);
-	out.write_shift(1, 0x1A | ((1)<<5));
-	out.write_shift(2, 2 + wb.SheetNames.map(function(n) { return n.toLowerCase(); }).indexOf(sname.toLowerCase()));
-	out.write_shift(4, cell.r);
-	out.write_shift(2, cell.c | ((str.charAt(0) == "$" ? 0 : 1)<<14) | ((str.match(/\$\d/) ? 0 : 1)<<15)); // <== ColRelShort
-
-	/* end cell */
-	str = parts[1]; cell = decode_cell(str);
-	out.write_shift(1, 0x1A | ((1)<<5));
-	out.write_shift(2, 2 + wb.SheetNames.map(function(n) { return n.toLowerCase(); }).indexOf(sname.toLowerCase()));
-	out.write_shift(4, cell.r);
-	out.write_shift(2, cell.c | ((str.charAt(0) == "$" ? 0 : 1)<<14) | ((str.match(/\$\d/) ? 0 : 1)<<15)); // <== ColRelShort
-
-	/* PtgRange */
-	out.write_shift(1, 0x11);
-
-	out.write_shift(4, 0);
-
-	return out;
-}
-
-/* Writes a range with explicit sheet name [PtgArea3d] */
-function write_XLSBFormulaArea3D(_str, wb) {
-	var lastbang = _str.lastIndexOf("!");
-	var sname = _str.slice(0, lastbang);
-	_str = _str.slice(lastbang+1);
-	if(sname.charAt(0) == "'") sname = sname.slice(1, -1).replace(/''/g, "'");
-	var range = decode_range(_str);
-
-	var out = new_buf(23);
-	out.write_shift(4, 15);
-
-	out.write_shift(1, 0x1B | ((1)<<5));
-	out.write_shift(2, 2 + wb.SheetNames.map(function(n) { return n.toLowerCase(); }).indexOf(sname.toLowerCase()));
-	out.write_shift(4, range.s.r);
-	out.write_shift(4, range.e.r);
-	out.write_shift(2, range.s.c);
-	out.write_shift(2, range.e.c);
-
-	out.write_shift(4, 0);
-
-	return out;
-}
-
-
-/* General Formula */
-function write_XLSBFormula(val/*:string|number*/, wb) {
-	if(typeof val == "number") return write_XLSBFormulaNum(val);
-	if(typeof val == "boolean") return write_XLSBFormulaBool(val);
-	if(/^#(DIV\/0!|GETTING_DATA|N\/A|NAME\?|NULL!|NUM!|REF!|VALUE!)$/.test(val)) return write_XLSBFormulaErr(+RBErr[val]);
-	if(val.match(/^\$?(?:[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D]|[A-Z]{1,2})\$?(?:10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})$/)) return write_XLSBFormulaRef(val);
-	if(val.match(/^\$?(?:[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D]|[A-Z]{1,2})\$?(?:10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5}):\$?(?:[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D]|[A-Z]{1,2})\$?(?:10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})$/)) return write_XLSBFormulaRange(val);
-	if(val.match(/^#REF!\$?(?:[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D]|[A-Z]{1,2})\$?(?:10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5}):\$?(?:[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D]|[A-Z]{1,2})\$?(?:10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})$/)) return write_XLSBFormulaArea3D(val, wb);
-	if(val.match(/^(?:'[^\\\/?*\[\]:]*'|[^'][^\\\/?*\[\]:'`~!@#$%^()\-=+{}|;,<.>]*)!\$?(?:[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D]|[A-Z]{1,2})\$?(?:10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})$/)) return write_XLSBFormulaRef3D(val, wb);
-	if(val.match(/^(?:'[^\\\/?*\[\]:]*'|[^'][^\\\/?*\[\]:'`~!@#$%^()\-=+{}|;,<.>]*)!\$?(?:[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D]|[A-Z]{1,2})\$?(?:10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5}):\$?(?:[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D]|[A-Z]{1,2})\$?(?:10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})$/)) return write_XLSBFormulaRangeWS(val, wb);
-	if(/^(?:'[^\\\/?*\[\]:]*'|[^'][^\\\/?*\[\]:'`~!@#$%^()\-=+{}|;,<.>]*)!#REF!$/.test(val)) return write_XLSBFormulaRefErr3D(val, wb);
-	if(/^".*"$/.test(val)) return write_XLSBFormulaStr(val);
-	if(/^[+-]\d+$/.test(val)) return write_XLSBFormulaNum(parseInt(val, 10));
-	throw "Formula |" + val + "| not supported for XLSB";
-}
-var write_XLSBNameParsedFormula = write_XLSBFormula;
--- a/bits/64_ftab.js
+++ b/bits/64_ftab.js
--- a/bits/65_fods.js
+++ b/bits/65_fods.js
@ -9,8 +9,6 @@ function ods_to_csf_formula(f/*:string*/)/*:string*/ {
 	f = f.replace(/COM\.MICROSOFT\./g, "");
 	/* Part 3 Section 5.8 References */
 	f = f.replace(/\[((?:\.[A-Z]+[0-9]+)(?::\.[A-Z]+[0-9]+)?)\]/g, function($$, $1) { return $1.replace(/\./g,""); });
-	f = f.replace(/\$'([^']|'')+'/g, function($$) { return $$.slice(1); });
-	f = f.replace(/\$([^\]\. #$]+)/g, function($$, $1) { return ($1).match(/^([A-Z]{1,2}|[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D])?(10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})?$/) ? $$ : $1; });
 	/* TODO: something other than this */
 	f = f.replace(/\[.(#[A-Z]*[?!])\]/g, "$1");
 	return f.replace(/[;~]/g,",").replace(/\|/g,";");
@ -23,14 +21,12 @@ function csf_to_ods_formula(f/*:string*/)/*:string*/ {
 }

 function ods_to_csf_3D(r/*:string*/)/*:[string, string]*/ {
-	r = r.replace(/\$'([^']|'')+'/g, function($$) { return $$.slice(1); });
-	r = r.replace(/\$([^\]\. #$]+)/g, function($$, $1) { return ($1).match(/^([A-Z]{1,2}|[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D])?(10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})?$/) ? $$ : $1; });
 	var a = r.split(":");
 	var s = a[0].split(".")[0];
 	return [s, a[0].split(".")[1] + (a.length > 1 ? (":" + (a[1].split(".")[1] || a[1].split(".")[0])) : "")];
 }

 function csf_to_ods_3D(r/*:string*/)/*:string*/ {
-	return r.replace(/!/,".");
+	return r.replace(/\./,"!");
 }

--- a/bits/66_wscommon.js
+++ b/bits/66_wscommon.js
@ -1,33 +1,14 @@
 var strs = {}; // shared strings
 var _ssfopts = {}; // spreadsheet formatting options

+RELS.WS = [
+	"http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet",
+	"http://purl.oclc.org/ooxml/officeDocument/relationships/worksheet"
+];

-/*global Map */
-var browser_has_Map = typeof Map !== 'undefined';
-
-function get_sst_id(sst/*:SST*/, str/*:string*/, rev)/*:number*/ {
-	var i = 0, len = sst.length;
-	if(rev) {
-		if(browser_has_Map ? rev.has(str) : Object.prototype.hasOwnProperty.call(rev, str)) {
-			var revarr = browser_has_Map ? rev.get(str) : rev[str];
-			for(; i < revarr.length; ++i) {
-				if(sst[revarr[i]].t === str) { sst.Count ++; return revarr[i]; }
-			}
-		}
-	} else for(; i < len; ++i) {
-		if(sst[i].t === str) { sst.Count ++; return i; }
-	}
-	sst[len] = ({t:str}/*:any*/); sst.Count ++; sst.Unique ++;
-	if(rev) {
-		if(browser_has_Map) {
-			if(!rev.has(str)) rev.set(str, []);
-			rev.get(str).push(len);
-		} else {
-			if(!Object.prototype.hasOwnProperty.call(rev, str)) rev[str] = [];
-			rev[str].push(len);
-		}
-	}
-	return len;
+function get_sst_id(sst/*:SST*/, str/*:string*/)/*:number*/ {
+	for(var i = 0, len = sst.length; i < len; ++i) if(sst[i].t === str) { sst.Count ++; return i; }
+	sst[len] = {t:str}; sst.Count ++; sst.Unique ++; return len;
 }

 function col_obj_w(C/*:number*/, col) {
@ -41,7 +22,6 @@ function col_obj_w(C/*:number*/, col) {
 	if(wch > -1) { p.width = char2width(wch); p.customWidth = 1; }
 	else if(col.width != null) p.width = col.width;
 	if(col.hidden) p.hidden = true;
-	if(col.level != null) { p.outlineLevel = p.level = col.level; }
 	return p;
 }

@ -62,7 +42,7 @@ function get_cell_style(styles/*:Array<any>*/, cell/*:Cell*/, opts) {
 	var i = 0x3c, len = styles.length;
 	if(z == null && opts.ssf) {
 		for(; i < 0x188; ++i) if(opts.ssf[i] == null) {
-			SSF__load(cell.z, i);
+			SSF.load(cell.z, i);
 			// $FlowIgnore
 			opts.ssf[i] = cell.z;
 			opts.revssf[cell.z] = z = i;
@ -82,29 +62,29 @@ function get_cell_style(styles/*:Array<any>*/, cell/*:Cell*/, opts) {
 }

 function safe_format(p/*:Cell*/, fmtid/*:number*/, fillid/*:?number*/, opts, themes, styles) {
-	try {
-		if(opts.cellNF) p.z = table_fmt[fmtid];
-	} catch(e) { if(opts.WTF) throw e; }
-	if(p.t === 'z' && !opts.cellStyles) return;
+	if(p.t === 'z') return;
 	if(p.t === 'd' && typeof p.v === 'string') p.v = parseDate(p.v);
-	if((!opts || opts.cellText !== false) && p.t !== 'z') try {
-		if(table_fmt[fmtid] == null) SSF__load(SSFImplicit[fmtid] || "General", fmtid);
+	try {
+		if(opts.cellNF) p.z = SSF._table[fmtid];
+	} catch(e) { if(opts.WTF) throw e; }
+	if(!opts || opts.cellText !== false) try {
+		if(SSF._table[fmtid] == null) SSF.load(SSFImplicit[fmtid] || "General", fmtid);
 		if(p.t === 'e') p.w = p.w || BErr[p.v];
 		else if(fmtid === 0) {
 			if(p.t === 'n') {
-				if((p.v|0) === p.v) p.w = p.v.toString(10);
-				else p.w = SSF_general_num(p.v);
+				if((p.v|0) === p.v) p.w = SSF._general_int(p.v);
+				else p.w = SSF._general_num(p.v);
 			}
 			else if(p.t === 'd') {
 				var dd = datenum(p.v);
-				if((dd|0) === dd) p.w = dd.toString(10);
-				else p.w = SSF_general_num(dd);
+				if((dd|0) === dd) p.w = SSF._general_int(dd);
+				else p.w = SSF._general_num(dd);
 			}
 			else if(p.v === undefined) return "";
-			else p.w = SSF_general(p.v,_ssfopts);
+			else p.w = SSF._general(p.v,_ssfopts);
 		}
-		else if(p.t === 'd') p.w = SSF_format(fmtid,datenum(p.v),_ssfopts);
-		else p.w = SSF_format(fmtid,p.v,_ssfopts);
+		else if(p.t === 'd') p.w = SSF.format(fmtid,datenum(p.v),_ssfopts);
+		else p.w = SSF.format(fmtid,p.v,_ssfopts);
 	} catch(e) { if(opts.WTF) throw e; }
 	if(!opts.cellStyles) return;
 	if(fillid != null) try {
--- a/bits/67_wsxml.js
+++ b/bits/67_wsxml.js
@ -3,24 +3,21 @@ function parse_ws_xml_dim(ws/*:Worksheet*/, s/*:string*/) {
 	if(d.s.r<=d.e.r && d.s.c<=d.e.c && d.s.r>=0 && d.s.c>=0) ws["!ref"] = encode_range(d);
 }
 var mergecregex = /<(?:\w:)?mergeCell ref="[A-Z0-9:]+"\s*[\/]?>/g;
-var sheetdataregex = /<(?:\w+:)?sheetData[^>]*>([\s\S]*)<\/(?:\w+:)?sheetData>/;
+var sheetdataregex = /<(?:\w+:)?sheetData>([\s\S]*)<\/(?:\w+:)?sheetData>/;
 var hlinkregex = /<(?:\w:)?hyperlink [^>]*>/mg;
 var dimregex = /"(\w*:\w*)"/;
-var colregex = /<(?:\w:)?col\b[^>]*[\/]?>/g;
+var colregex = /<(?:\w:)?col[^>]*[\/]?>/g;
 var afregex = /<(?:\w:)?autoFilter[^>]*([\/]|>([\s\S]*)<\/(?:\w:)?autoFilter)>/g;
 var marginregex= /<(?:\w:)?pageMargins[^>]*\/>/g;
-var sheetprregex = /<(?:\w:)?sheetPr\b(?:[^>a-z][^>]*)?\/>/;
-var sheetprregex2= /<(?:\w:)?sheetPr[^>]*(?:[\/]|>([\s\S]*)<\/(?:\w:)?sheetPr)>/;
+var sheetprregex = /<(?:\w:)?sheetPr(?:[^>a-z][^>]*)?\/>/;
 var svsregex = /<(?:\w:)?sheetViews[^>]*(?:[\/]|>([\s\S]*)<\/(?:\w:)?sheetViews)>/;
-
 /* 18.3 Worksheets */
 function parse_ws_xml(data/*:?string*/, opts, idx/*:number*/, rels, wb/*:WBWBProps*/, themes, styles)/*:Worksheet*/ {
 	if(!data) return data;
-	if(!rels) rels = {'!id':{}};
 	if(DENSE != null && opts.dense == null) opts.dense = DENSE;

 	/* 18.3.1.99 worksheet CT_Worksheet */
-	var s = ({}/*:any*/); if(opts.dense) s["!data"] = [];
+	var s = opts.dense ? ([]/*:any*/) : ({}/*:any*/);
 	var refguess/*:Range*/ = ({s: {r:2000000, c:2000000}, e: {r:0, c:0} }/*:any*/);

 	var data1 = "", data2 = "";
@ -33,13 +30,13 @@ function parse_ws_xml(data/*:?string*/, opts, idx/*:number*/, rels, wb/*:WBWBPro
 	/* 18.3.1.82 sheetPr CT_SheetPr */
 	var sheetPr = data1.match(sheetprregex);
 	if(sheetPr) parse_ws_xml_sheetpr(sheetPr[0], s, wb, idx);
-	else if((sheetPr = data1.match(sheetprregex2))) parse_ws_xml_sheetpr2(sheetPr[0], sheetPr[1]||"", s, wb, idx, styles, themes);

 	/* 18.3.1.35 dimension CT_SheetDimension */
+	// $FlowIgnore
 	var ridx = (data1.match(/<(?:\w*:)?dimension/)||{index:-1}).index;
 	if(ridx > 0) {
 		var ref = data1.slice(ridx,ridx+50).match(dimregex);
-		if(ref && !(opts && opts.nodim)) parse_ws_xml_dim(s, ref[1]);
+		if(ref) parse_ws_xml_dim(s, ref[1]);
 	}

 	/* 18.3.1.88 sheetViews CT_SheetViews */
@ -75,7 +72,6 @@ function parse_ws_xml(data/*:?string*/, opts, idx/*:number*/, rels, wb/*:WBWBPro
 	var margins = data2.match(marginregex);
 	if(margins) s['!margins'] = parse_ws_xml_margins(parsexmltag(margins[0]));

-	if(opts && opts.nodim) refguess.s.c = refguess.s.r = 0;
 	if(!s["!ref"] && refguess.e.c >= refguess.s.c && refguess.e.r >= refguess.s.r) s["!ref"] = encode_range(refguess);
 	if(opts.sheetRows > 0 && s["!ref"]) {
 		var tmpref = safe_decode_range(s["!ref"]);
@ -105,72 +101,49 @@ function write_ws_xml_merges(merges/*:Array<Range>*/)/*:string*/ {
 function parse_ws_xml_sheetpr(sheetPr/*:string*/, s, wb/*:WBWBProps*/, idx/*:number*/) {
 	var data = parsexmltag(sheetPr);
 	if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
-	if(data.codeName) wb.Sheets[idx].CodeName = unescapexml(utf8read(data.codeName));
-}
-function parse_ws_xml_sheetpr2(sheetPr/*:string*/, body/*:string*/, s, wb/*:WBWBProps*/, idx/*:number*/) {
-	parse_ws_xml_sheetpr(sheetPr.slice(0, sheetPr.indexOf(">")), s, wb, idx);
-}
-function write_ws_xml_sheetpr(ws, wb, idx, opts, o) {
-	var needed = false;
-	var props = {}, payload = null;
-	if(opts.bookType !== 'xlsx' && wb.vbaraw) {
-		var cname = wb.SheetNames[idx];
-		try { if(wb.Workbook) cname = wb.Workbook.Sheets[idx].CodeName || cname; } catch(e) {}
-		needed = true;
-		props.codeName = utf8write(escapexml(cname));
-	}
-
-	if(ws && ws["!outline"]) {
-		var outlineprops = {summaryBelow:1, summaryRight:1};
-		if(ws["!outline"].above) outlineprops.summaryBelow = 0;
-		if(ws["!outline"].left) outlineprops.summaryRight = 0;
-		payload = (payload||"") + writextag('outlinePr', null, outlineprops);
-	}
-
-	if(!needed && !payload) return;
-	o[o.length] = (writextag('sheetPr', payload, props));
+	if(data.codeName) wb.Sheets[idx].CodeName = data.codeName;
 }

 /* 18.3.1.85 sheetProtection CT_SheetProtection */
-var sheetprot_deffalse = ["objects", "scenarios", "selectLockedCells", "selectUnlockedCells"];
-var sheetprot_deftrue = [
-	"formatColumns", "formatRows", "formatCells",
-	"insertColumns", "insertRows", "insertHyperlinks",
-	"deleteColumns", "deleteRows",
-	"sort", "autoFilter", "pivotTables"
-];
 function write_ws_xml_protection(sp)/*:string*/ {
-	// algorithmName, hashValue, saltValue, spinCount
+	// algorithmName, hashValue, saltValue, spinCountpassword
 	var o = ({sheet:1}/*:any*/);
-	sheetprot_deffalse.forEach(function(n) { if(sp[n] != null && sp[n]) o[n] = "1"; });
-	sheetprot_deftrue.forEach(function(n) { if(sp[n] != null && !sp[n]) o[n] = "0"; });
+	var deffalse = ["objects", "scenarios", "selectLockedCells", "selectUnlockedCells"];
+	var deftrue = [
+		"formatColumns", "formatRows", "formatCells",
+		"insertColumns", "insertRows", "insertHyperlinks",
+		"deleteColumns", "deleteRows",
+		"sort", "autoFilter", "pivotTables"
+	];
+	deffalse.forEach(function(n) { if(sp[n] != null && sp[n]) o[n] = "1"; });
+	deftrue.forEach(function(n) { if(sp[n] != null && !sp[n]) o[n] = "0"; });
 	/* TODO: algorithm */
 	if(sp.password) o.password = crypto_CreatePasswordVerifier_Method1(sp.password).toString(16).toUpperCase();
 	return writextag('sheetProtection', null, o);
 }

 function parse_ws_xml_hlinks(s, data/*:Array<string>*/, rels) {
-	var dense = s["!data"] != null;
+	var dense = Array.isArray(s);
 	for(var i = 0; i != data.length; ++i) {
 		var val = parsexmltag(utf8read(data[i]), true);
 		if(!val.ref) return;
 		var rel = ((rels || {})['!id']||[])[val.id];
 		if(rel) {
 			val.Target = rel.Target;
-			if(val.location) val.Target += "#"+unescapexml(val.location);
+			if(val.location) val.Target += "#"+val.location;
 		} else {
-			val.Target = "#" + unescapexml(val.location);
+			val.Target = "#" + val.location;
 			rel = {Target: val.Target, TargetMode: 'Internal'};
 		}
 		val.Rel = rel;
 		if(val.tooltip) { val.Tooltip = val.tooltip; delete val.tooltip; }
 		var rng = safe_decode_range(val.ref);
 		for(var R=rng.s.r;R<=rng.e.r;++R) for(var C=rng.s.c;C<=rng.e.c;++C) {
-			var addr = encode_col(C) + encode_row(R);
+			var addr = encode_cell({c:C,r:R});
 			if(dense) {
-				if(!s["!data"][R]) s["!data"][R] = [];
-				if(!s["!data"][R][C]) s["!data"][R][C] = {t:"z",v:undefined};
-				s["!data"][R][C].l = val;
+				if(!s[R]) s[R] = [];
+				if(!s[R][C]) s[R][C] = {t:"z",v:undefined};
+				s[R][C].l = val;
 			} else {
 				if(!s[addr]) s[addr] = {t:"z",v:undefined};
 				s[addr].l = val;
@ -197,13 +170,13 @@ function parse_ws_xml_cols(columns, cols) {
 		var coll = parsexmltag(cols[coli], true);
 		if(coll.hidden) coll.hidden = parsexmlbool(coll.hidden);
 		var colm=parseInt(coll.min, 10)-1, colM=parseInt(coll.max,10)-1;
-		if(coll.outlineLevel) coll.level = (+coll.outlineLevel || 0);
 		delete coll.min; delete coll.max; coll.width = +coll.width;
 		if(!seencol && coll.width) { seencol = true; find_mdw_colw(coll.width); }
 		process_col(coll);
 		while(colm <= colM) columns[colm++] = dup(coll);
 	}
 }
+
 function write_ws_xml_cols(ws, cols)/*:string*/ {
 	var o = ["<cols>"], col;
 	for(var i = 0; i != cols.length; ++i) {
@ -218,66 +191,50 @@ function parse_ws_xml_autofilter(data/*:string*/) {
 	var o = { ref: (data.match(/ref="([^"]*)"/)||[])[1]};
 	return o;
 }
-function write_ws_xml_autofilter(data, ws, wb, idx)/*:string*/ {
-	var ref = typeof data.ref == "string" ? data.ref : encode_range(data.ref);
-	if(!wb.Workbook) wb.Workbook = ({Sheets:[]}/*:any*/);
-	if(!wb.Workbook.Names) wb.Workbook.Names = [];
-	var names/*: Array<any> */ = wb.Workbook.Names;
-	var range = decode_range(ref);
-	if(range.s.r == range.e.r) { range.e.r = decode_range(ws["!ref"]).e.r; ref = encode_range(range); }
-	for(var i = 0; i < names.length; ++i) {
-		var name = names[i];
-		if(name.Name != '_xlnm._FilterDatabase') continue;
-		if(name.Sheet != idx) continue;
-		name.Ref = formula_quote_sheet_name(wb.SheetNames[idx]) + "!" + fix_range(ref); break;
-	}
-	if(i == names.length) names.push({ Name: '_xlnm._FilterDatabase', Sheet: idx, Ref: "'" + wb.SheetNames[idx] + "'!" + ref  });
-	return writextag("autoFilter", null, {ref:ref});
+function write_ws_xml_autofilter(data)/*:string*/ {
+	return writextag("autoFilter", null, {ref:data.ref});
 }

 /* 18.3.1.88 sheetViews CT_SheetViews */
 /* 18.3.1.87 sheetView CT_SheetView */
-var sviewregex = /<(?:\w:)?sheetView(?:[^>a-z][^>]*)?\/?>/g;
+var sviewregex = /<(?:\w:)?sheetView(?:[^>a-z][^>]*)?\/>/;
 function parse_ws_xml_sheetviews(data, wb/*:WBWBProps*/) {
-	if(!wb.Views) wb.Views = [{}];
-	(data.match(sviewregex)||[]).forEach(function(r/*:string*/, i/*:number*/) {
+	(data.match(sviewregex)||[]).forEach(function(r/*:string*/) {
 		var tag = parsexmltag(r);
-		// $FlowIgnore
-		if(!wb.Views[i]) wb.Views[i] = {};
-		// $FlowIgnore
-		if(+tag.zoomScale) wb.Views[i].zoom = +tag.zoomScale;
-		// $FlowIgnore
-		if(tag.rightToLeft && parsexmlbool(tag.rightToLeft)) wb.Views[i].RTL = true;
+		if(parsexmlbool(tag.rightToLeft)) {
+			if(!wb.Views) wb.Views = [{}];
+			if(!wb.Views[0]) wb.Views[0] = {};
+			wb.Views[0].RTL = true;
+		}
 	});
 }
 function write_ws_xml_sheetviews(ws, opts, idx, wb)/*:string*/ {
-	var sview = ({workbookViewId:"0"}/*:any*/);
+	var sview = {workbookViewId:"0"};
 	// $FlowIgnore
-	if((((wb||{}).Workbook||{}).Views||[])[0]) sview.rightToLeft = wb.Workbook.Views[0].RTL ? "1" : "0";
+	if( (((wb||{}).Workbook||{}).Views||[])[0] ) sview.rightToLeft = wb.Workbook.Views[0].RTL ? "1" : "0";
 	return writextag("sheetViews", writextag("sheetView", null, sview), {});
 }

 function write_ws_xml_cell(cell/*:Cell*/, ref, ws, opts/*::, idx, wb*/)/*:string*/ {
-	if(cell.c) ws['!comments'].push([ref, cell.c]);
-	if((cell.v === undefined || cell.t === "z" && !(opts||{}).sheetStubs) && typeof cell.f !== "string" && typeof cell.z == "undefined") return "";
+	if(cell.v === undefined && cell.f === undefined || cell.t === 'z') return "";
 	var vv = "";
 	var oldt = cell.t, oldv = cell.v;
-	if(cell.t !== "z") switch(cell.t) {
+	switch(cell.t) {
 		case 'b': vv = cell.v ? "1" : "0"; break;
 		case 'n': vv = ''+cell.v; break;
 		case 'e': vv = BErr[cell.v]; break;
 		case 'd':
-			if(opts && opts.cellDates) vv = parseDate(cell.v, -1).toISOString();
+			if(opts.cellDates) vv = parseDate(cell.v, -1).toISOString();
 			else {
 				cell = dup(cell);
 				cell.t = 'n';
 				vv = ''+(cell.v = datenum(parseDate(cell.v)));
 			}
-			if(typeof cell.z === 'undefined') cell.z = table_fmt[14];
+			if(typeof cell.z === 'undefined') cell.z = SSF._table[14];
 			break;
 		default: vv = cell.v; break;
 	}
-	var v = (cell.t == "z" || cell.v == null)? "" : writetag('v', escapexml(vv)), o = ({r:ref}/*:any*/);
+	var v = writetag('v', escapexml(vv)), o = ({r:ref}/*:any*/);
 	/* TODO: cell style */
 	var os = get_cell_style(opts.cellXfs, cell, opts);
 	if(os !== 0) o.s = os;
@ -286,30 +243,25 @@ function write_ws_xml_cell(cell/*:Cell*/, ref, ws, opts/*::, idx, wb*/)/*:string
 		case 'd': o.t = "d"; break;
 		case 'b': o.t = "b"; break;
 		case 'e': o.t = "e"; break;
-		case 'z': break;
 		default: if(cell.v == null) { delete cell.t; break; }
-			if(cell.v.length > 32767) throw new Error("Text length must not exceed 32767 characters");
-			if(opts && opts.bookSST) {
-				v = writetag('v', ''+get_sst_id(opts.Strings, cell.v, opts.revStrings));
+			if(opts.bookSST) {
+				v = writetag('v', ''+get_sst_id(opts.Strings, cell.v));
 				o.t = "s"; break;
 			}
-			else o.t = "str"; break;
+			o.t = "str"; break;
 	}
 	if(cell.t != oldt) { cell.t = oldt; cell.v = oldv; }
-	if(typeof cell.f == "string" && cell.f) {
+	if(cell.f) {
 		var ff = cell.F && cell.F.slice(0, ref.length) == ref ? {t:"array", ref:cell.F} : null;
 		v = writextag('f', escapexml(cell.f), ff) + (cell.v != null ? v : "");
 	}
-	if(cell.l) {
-		cell.l.display = escapexml(vv);
-		ws['!links'].push([ref, cell.l]);
-	}
-	if(cell.D) o.cm = 1;
+	if(cell.l) ws['!links'].push([ref, cell.l]);
+	if(cell.c) ws['!comments'].push([ref, cell.c]);
 	return writextag('c', v, o);
 }

-var parse_ws_xml_data = /*#__PURE__*/(function() {
-	var cellregex = /<(?:\w+:)?c[ \/>]/, rowregex = /<\/(?:\w+:)?row>/;
+var parse_ws_xml_data = (function() {
+	var cellregex = /<(?:\w+:)?c[ >]/, rowregex = /<\/(?:\w+:)?row>/;
 	var rregex = /r=["']([^"']*)["']/, isregex = /<(?:\w+:)?is>([\S\s]*?)<\/(?:\w+:)?is>/;
 	var refregex = /ref=["']([^"']*)["']/;
 	var match_v = matchtag("v"), match_f = matchtag("f");
@ -322,54 +274,31 @@ return function parse_ws_xml_data(sdata/*:string*/, s, opts, guess/*:Range*/, th
 	var do_format = Array.isArray(styles.CellXf), cf;
 	var arrayf/*:Array<[Range, string]>*/ = [];
 	var sharedf = [];
-	var dense = s["!data"] != null;
+	var dense = Array.isArray(s);
 	var rows/*:Array<RowInfo>*/ = [], rowobj = {}, rowrite = false;
-	var sheetStubs = !!opts.sheetStubs;
 	for(var marr = sdata.split(rowregex), mt = 0, marrlen = marr.length; mt != marrlen; ++mt) {
 		x = marr[mt].trim();
 		var xlen = x.length;
 		if(xlen === 0) continue;

 		/* 18.3.1.73 row CT_Row */
-		var rstarti = 0;
-		outa: for(ri = 0; ri < xlen; ++ri) switch(/*x.charCodeAt(ri)*/x[ri]) {
-			case ">" /*62*/:
-				if(/*x.charCodeAt(ri-1) != 47*/x[ri-1] != "/") { ++ri; break outa; }
-				if(opts && opts.cellStyles) {
-					// TODO: avoid duplication
-					tag = parsexmltag(x.slice(rstarti,ri), true);
-					tagr = tag.r != null ? parseInt(tag.r, 10) : tagr+1; tagc = -1;
-					if(opts.sheetRows && opts.sheetRows < tagr) continue;
-					rowobj = {}; rowrite = false;
-					if(tag.ht) { rowrite = true; rowobj.hpt = parseFloat(tag.ht); rowobj.hpx = pt2px(rowobj.hpt); }
-					if(tag.hidden && parsexmlbool(tag.hidden)) { rowrite = true; rowobj.hidden = true; }
-					if(tag.outlineLevel != null) { rowrite = true; rowobj.level = +tag.outlineLevel; }
-					if(rowrite) rows[tagr-1] = rowobj;
-				}
-				break;
-			case "<" /*60*/: rstarti = ri; break;
-		}
-		if(rstarti >= ri) break;
-		tag = parsexmltag(x.slice(rstarti,ri), true);
+		for(ri = 0; ri < xlen; ++ri) if(x.charCodeAt(ri) === 62) break; ++ri;
+		tag = parsexmltag(x.slice(0,ri), true);
 		tagr = tag.r != null ? parseInt(tag.r, 10) : tagr+1; tagc = -1;
 		if(opts.sheetRows && opts.sheetRows < tagr) continue;
-		if(!opts.nodim) {
-			if(guess.s.r > tagr - 1) guess.s.r = tagr - 1;
-			if(guess.e.r < tagr - 1) guess.e.r = tagr - 1;
-		}
+		if(guess.s.r > tagr - 1) guess.s.r = tagr - 1;
+		if(guess.e.r < tagr - 1) guess.e.r = tagr - 1;

 		if(opts && opts.cellStyles) {
 			rowobj = {}; rowrite = false;
 			if(tag.ht) { rowrite = true; rowobj.hpt = parseFloat(tag.ht); rowobj.hpx = pt2px(rowobj.hpt); }
-			if(tag.hidden && parsexmlbool(tag.hidden)) { rowrite = true; rowobj.hidden = true; }
+			if(tag.hidden == "1") { rowrite = true; rowobj.hidden = true; }
 			if(tag.outlineLevel != null) { rowrite = true; rowobj.level = +tag.outlineLevel; }
 			if(rowrite) rows[tagr-1] = rowobj;
 		}

 		/* 18.3.1.4 c CT_Cell */
 		cells = x.slice(ri).split(cellregex);
-		for(var rslice = 0; rslice != cells.length; ++rslice) if(cells[rslice].trim().charAt(0) != "<") break;
-		cells = cells.slice(rslice);
 		for(ri = 0; ri != cells.length; ++ri) {
 			x = cells[ri].trim();
 			if(x.length === 0) continue;
@ -394,21 +323,18 @@ return function parse_ws_xml_data(sdata/*:string*/, s, opts, guess/*:Range*/, th
 			if(opts.cellFormula) {
 				if((cref=d.match(match_f))!= null && /*::cref != null && */cref[1] !== '') {
 					/* TODO: match against XLSXFutureFunctions */
-					p.f=unescapexml(utf8read(cref[1]), true);
-					if(!opts.xlfn) p.f = _xlfn(p.f);
+					p.f=_xlfn(unescapexml(utf8read(cref[1])));
 					if(/*::cref != null && cref[0] != null && */cref[0].indexOf('t="array"') > -1) {
 						p.F = (d.match(refregex)||[])[1];
 						if(p.F.indexOf(":") > -1) arrayf.push([safe_decode_range(p.F), p.F]);
 					} else if(/*::cref != null && cref[0] != null && */cref[0].indexOf('t="shared"') > -1) {
 						// TODO: parse formula
 						ftag = parsexmltag(cref[0]);
-						var ___f = unescapexml(utf8read(cref[1]));
-						if(!opts.xlfn) ___f = _xlfn(___f);
-						sharedf[parseInt(ftag.si, 10)] = [ftag, ___f, tag.r];
+						sharedf[parseInt(ftag.si, 10)] = [ftag, _xlfn(unescapexml(utf8read(cref[1])))];
 					}
 				} else if((cref=d.match(/<f[^>]*\/>/))) {
 					ftag = parsexmltag(cref[0]);
-					if(sharedf[ftag.si]) p.f = shift_formula_xlsx(sharedf[ftag.si][1], sharedf[ftag.si][2]/*[0].ref*/, tag.r);
+					if(sharedf[ftag.si]) p.f = shift_formula_xlsx(sharedf[ftag.si][1], sharedf[ftag.si][0].ref, tag.r);
 				}
 				/* TODO: factor out contains logic */
 				var _tag = decode_cell(tag.r);
@ -421,23 +347,23 @@ return function parse_ws_xml_data(sdata/*:string*/, s, opts, guess/*:Range*/, th
 			if(tag.t == null && p.v === undefined) {
 				if(p.f || p.F) {
 					p.v = 0; p.t = "n";
-				} else if(!sheetStubs) continue;
+				} else if(!opts.sheetStubs) continue;
 				else p.t = "z";
 			}
 			else p.t = tag.t || "n";
-			if(guess.s.c > tagc) guess.s.c = tagc;
-			if(guess.e.c < tagc) guess.e.c = tagc;
+			if(guess.s.c > idx) guess.s.c = idx;
+			if(guess.e.c < idx) guess.e.c = idx;
 			/* 18.18.11 t ST_CellType */
 			switch(p.t) {
 				case 'n':
 					if(p.v == "" || p.v == null) {
-						if(!sheetStubs) continue;
+						if(!opts.sheetStubs) continue;
 						p.t = 'z';
 					} else p.v = parseFloat(p.v);
 					break;
 				case 's':
 					if(typeof p.v == 'undefined') {
-						if(!sheetStubs) continue;
+						if(!opts.sheetStubs) continue;
 						p.t = 'z';
 					} else {
 						sstr = strs[parseInt(p.v, 10)];
@ -448,16 +374,13 @@ return function parse_ws_xml_data(sdata/*:string*/, s, opts, guess/*:Range*/, th
 					break;
 				case 'str':
 					p.t = "s";
-					p.v = (p.v!=null) ? unescapexml(utf8read(p.v), true) : '';
+					p.v = (p.v!=null) ? utf8read(p.v) : '';
 					if(opts.cellHTML) p.h = escapehtml(p.v);
 					break;
 				case 'inlineStr':
 					cref = d.match(isregex);
 					p.t = 's';
-					if(cref != null && (sstr = parse_si(cref[1]))) {
-						p.v = sstr.t;
-						if(opts.cellHTML) p.h = sstr.h;
-					} else p.v = "";
+					if(cref != null && (sstr = parse_si(cref[1]))) p.v = sstr.t; else p.v = "";
 					break;
 				case 'b': p.v = parsexmlbool(p.v); break;
 				case 'd':
@ -471,7 +394,6 @@ return function parse_ws_xml_data(sdata/*:string*/, s, opts, guess/*:Range*/, th
 			}
 			/* formatting */
 			fmtid = fillid = 0;
-			cf = null;
 			if(do_format && tag.s !== undefined) {
 				cf = styles.CellXf[tag.s];
 				if(cf != null) {
@ -482,21 +404,11 @@ return function parse_ws_xml_data(sdata/*:string*/, s, opts, guess/*:Range*/, th
 				}
 			}
 			safe_format(p, fmtid, fillid, opts, themes, styles);
-			if(opts.cellDates && do_format && p.t == 'n' && fmt_is_date(table_fmt[fmtid])) { p.t = 'd'; p.v = numdate(p.v); }
-			if(tag.cm && opts.xlmeta) {
-				var cm = (opts.xlmeta.Cell||[])[+tag.cm-1];
-				if(cm && cm.type == 'XLDAPR') p.D = true;
-			}
-			var _r;
-			if(opts.nodim) {
-				_r = decode_cell(tag.r);
-				if(guess.s.r > _r.r) guess.s.r = _r.r;
-				if(guess.e.r < _r.r) guess.e.r = _r.r;
-			}
+			if(opts.cellDates && do_format && p.t == 'n' && SSF.is_date(SSF._table[fmtid])) { p.t = 'd'; p.v = numdate(p.v); }
 			if(dense) {
-				_r = decode_cell(tag.r);
-				if(!s["!data"][_r.r]) s["!data"][_r.r] = [];
-				s["!data"][_r.r][_r.c] = p;
+				var _r = decode_cell(tag.r);
+				if(!s[_r.r]) s[_r.r] = [];
+				s[_r.r][_r.c] = p;
 			} else s[tag.r] = p;
 		}
 	}
@ -505,7 +417,7 @@ return function parse_ws_xml_data(sdata/*:string*/, s, opts, guess/*:Range*/, th

 function write_ws_xml_data(ws/*:Worksheet*/, opts, idx/*:number*/, wb/*:Workbook*//*::, rels*/)/*:string*/ {
 	var o/*:Array<string>*/ = [], r/*:Array<string>*/ = [], range = safe_decode_range(ws['!ref']), cell="", ref, rr = "", cols/*:Array<string>*/ = [], R=0, C=0, rows = ws['!rows'];
-	var dense = ws["!data"] != null;
+	var dense = Array.isArray(ws);
 	var params = ({r:rr}/*:any*/), row/*:RowInfo*/, height = -1;
 	for(C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
 	for(R = range.s.r; R <= range.e.r; ++R) {
@ -513,7 +425,7 @@ function write_ws_xml_data(ws/*:Worksheet*/, opts, idx/*:number*/, wb/*:Workbook
 		rr = encode_row(R);
 		for(C = range.s.c; C <= range.e.c; ++C) {
 			ref = cols[C] + rr;
-			var _cell = dense ? (ws["!data"][R]||[])[C]: ws[ref];
+			var _cell = dense ? (ws[R]||[])[C]: ws[ref];
 			if(_cell === undefined) continue;
 			if((cell = write_ws_xml_cell(_cell, ref, ws, opts, idx, wb)) != null) r.push(cell);
 		}
@ -523,10 +435,10 @@ function write_ws_xml_data(ws/*:Worksheet*/, opts, idx/*:number*/, wb/*:Workbook
 				row = rows[R];
 				if(row.hidden) params.hidden = 1;
 				height = -1;
-				if(row.hpx) height = px2pt(row.hpx);
-				else if(row.hpt) height = row.hpt;
-				if(height > -1) { params.ht = height; params.customHeight = 1; }
-				if(row.level) { params.outlineLevel = row.level; }
+				if (row.hpx) height = px2pt(row.hpx);
+				else if (row.hpt) height = row.hpt;
+				if (height > -1) { params.ht = height; params.customHeight = 1; }
+				if (row.level) { params.outlineLevel = row.level; }
 			}
 			o[o.length] = (writextag('row', r.join(""), params));
 		}
@ -547,11 +459,13 @@ function write_ws_xml_data(ws/*:Worksheet*/, opts, idx/*:number*/, wb/*:Workbook
 	return o.join("");
 }

+var WS_XML_ROOT = writextag('worksheet', null, {
+	'xmlns': XMLNS.main[0],
+	'xmlns:r': XMLNS.r
+});
+
 function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
-	var o = [XML_HEADER, writextag('worksheet', null, {
-		'xmlns': XMLNS_main[0],
-		'xmlns:r': XMLNS.r
-	})];
+	var o = [XML_HEADER, WS_XML_ROOT];
 	var s = wb.SheetNames[idx], sidx = 0, rdata = "";
 	var ws = wb.Sheets[s];
 	if(ws == null) ws = {};
@ -565,9 +479,13 @@ function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
 	}
 	if(!rels) rels = {};
 	ws['!comments'] = [];
-	var _drawing = [];
+	ws['!drawing'] = [];

-	write_ws_xml_sheetpr(ws, wb, idx, opts, o);
+	if(opts.bookType !== 'xlsx' && wb.vbaraw) {
+		var cname = wb.SheetNames[idx];
+		try { if(wb.Workbook) cname = wb.Workbook.Sheets[idx].CodeName || cname; } catch(e) {}
+		o[o.length] = (writextag('sheetPr', null, {'codeName': escapexml(cname)}));
+	}

 	o[o.length] = (writextag('dimension', null, {'ref': ref}));

@ -592,12 +510,12 @@ function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {

 	/* sheetCalcPr */

-	if(ws['!protect']) o[o.length] = write_ws_xml_protection(ws['!protect']);
+	if(ws['!protect'] != null) o[o.length] = write_ws_xml_protection(ws['!protect']);

 	/* protectedRanges */
 	/* scenarios */

-	if(ws['!autofilter'] != null) o[o.length] = write_ws_xml_autofilter(ws['!autofilter'], ws, wb, idx);
+	if(ws['!autofilter'] != null) o[o.length] = write_ws_xml_autofilter(ws['!autofilter']);

 	/* sortState */
 	/* dataConsolidate */
@ -610,9 +528,9 @@ function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
 	/* dataValidations */

 	var relc = -1, rel, rId = -1;
-	if(/*::(*/ws['!links']/*::||[])*/.length > 0) {
+	if(ws['!links'].length > 0) {
 		o[o.length] = "<hyperlinks>";
-		/*::(*/ws['!links']/*::||[])*/.forEach(function(l) {
+		ws['!links'].forEach(function(l) {
 			if(!l[1].Target) return;
 			rel = ({"ref":l[0]}/*:any*/);
 			if(l[1].Target.charAt(0) != "#") {
@ -621,7 +539,6 @@ function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
 			}
 			if((relc = l[1].Target.indexOf("#")) > -1) rel.location = escapexml(l[1].Target.slice(relc+1));
 			if(l[1].Tooltip) rel.tooltip = escapexml(l[1].Tooltip);
-			rel.display = l[1].display;
 			o[o.length] = writextag("hyperlink",null,rel);
 		});
 		o[o.length] = "</hyperlinks>";
@ -629,25 +546,26 @@ function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
 	delete ws['!links'];

 	/* printOptions */
-
-	if(ws['!margins'] != null) o[o.length] =  write_ws_xml_margins(ws['!margins']);
-
+	if (ws['!margins'] != null) o[o.length] =  write_ws_xml_margins(ws['!margins']);
 	/* pageSetup */
-	/* headerFooter */
+
+	//var hfidx = o.length;
+	o[o.length] = "";
+
 	/* rowBreaks */
 	/* colBreaks */
 	/* customProperties */
 	/* cellWatches */

-	if(!opts || opts.ignoreEC || (opts.ignoreEC == (void 0))) o[o.length] = writetag("ignoredErrors", writextag("ignoredError", null, {numberStoredAsText:1, sqref:ref}));
+	o[o.length] = writetag("ignoredErrors", writextag("ignoredError", null, {numberStoredAsText:1, sqref:ref}));

 	/* smartTags */

-	if(_drawing.length > 0) {
+	if(ws['!drawing'].length > 0) {
 		rId = add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
 		o[o.length] = writextag("drawing", null, {"r:id":"rId" + rId});
-		ws['!drawing'] = _drawing;
 	}
+	else delete ws['!drawing'];

 	if(ws['!comments'].length > 0) {
 		rId = add_rels(rels, -1, "../drawings/vmlDrawing" + (idx+1) + ".vml", RELS.VML);
@ -655,14 +573,14 @@ function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
 		ws['!legacy'] = rId;
 	}

-	/* legacyDrawingHF */
+	/* drawingHF */
 	/* picture */
 	/* oleObjects */
 	/* controls */
 	/* webPublishItems */
 	/* tableParts */
-	/* extLst */
+	/* extList */

-	if(o.length>1) { o[o.length] = ('</worksheet>'); o[1]=o[1].replace("/>",">"); }
+	if(o.length>2) { o[o.length] = ('</worksheet>'); o[1]=o[1].replace("/>",">"); }
 	return o.join("");
 }
--- a/bits/68_wsbin.js
+++ b/bits/68_wsbin.js
@ -41,13 +41,12 @@ function write_BrtRowHdr(R/*:number*/, range, ws) {
 	o.l += 4;

 	var caddr = {r:R, c:0};
-	var dense = ws["!data"] != null;
 	for(var i = 0; i < 16; ++i) {
 		if((range.s.c > ((i+1) << 10)) || (range.e.c < (i << 10))) continue;
 		var first = -1, last = -1;
 		for(var j = (i<<10); j < ((i+1)<<10); ++j) {
 			caddr.c = j;
-			var cell = dense ? (ws["!data"][caddr.r]||[])[caddr.c] : ws[encode_cell(caddr)];
+			var cell = Array.isArray(ws) ? (ws[caddr.r]||[])[caddr.c] : ws[encode_cell(caddr)];
 			if(cell) { if(first < 0) first = j; last = j; }
 		}
 		if(first < 0) continue;
@ -65,7 +64,7 @@ function write_BrtRowHdr(R/*:number*/, range, ws) {
 }
 function write_row_header(ba, ws, range, R) {
 	var o = write_BrtRowHdr(R, range, ws);
-	if((o.length > 17) || (ws['!rows']||[])[R]) write_record(ba, 0x0000 /* BrtRowHdr */, o);
+	if((o.length > 17) || (ws['!rows']||[])[R]) write_record(ba, 'BrtRowHdr', o);
 }

 /* [MS-XLSB] 2.4.820 BrtWsDim */
@ -80,23 +79,14 @@ function parse_BrtWsFmtInfo(/*::data, length*/) {
 /* [MS-XLSB] 2.4.823 BrtWsProp */
 function parse_BrtWsProp(data, length) {
 	var z = {};
-	var f = data[data.l]; ++data.l;
-	z.above = !(f & 0x40);
-	z.left  = !(f & 0x80);
 	/* TODO: pull flags */
-	data.l += 18;
+	data.l += 19;
 	z.name = parse_XLSBCodeName(data, length - 19);
 	return z;
 }
-function write_BrtWsProp(str, outl, o) {
+function write_BrtWsProp(str, o) {
 	if(o == null) o = new_buf(84+4*str.length);
-	var f = 0xC0;
-	if(outl) {
-		if(outl.above) f &= ~0x40;
-		if(outl.left)  f &= ~0x80;
-	}
-	o.write_shift(1, f);
-	for(var i = 1; i < 3; ++i) o.write_shift(1,0);
+	for(var i = 0; i < 3; ++i) o.write_shift(1,0);
 	write_BrtColor({auto:1}, o);
 	o.write_shift(-4,-1);
 	o.write_shift(-4,-1);
@ -113,14 +103,7 @@ function write_BrtCellBlank(cell, ncell, o) {
 	if(o == null) o = new_buf(8);
 	return write_XLSBCell(ncell, o);
 }
-function parse_BrtShortBlank(data) {
-	var cell = parse_XLSBShortCell(data);
-	return [cell];
-}
-function write_BrtShortBlank(cell, ncell, o) {
-	if(o == null) o = new_buf(4);
-	return write_XLSBShortCell(ncell, o);
-}
+

 /* [MS-XLSB] 2.4.307 BrtCellBool */
 function parse_BrtCellBool(data) {
@ -134,17 +117,6 @@ function write_BrtCellBool(cell, ncell, o) {
 	o.write_shift(1, cell.v ? 1 : 0);
 	return o;
 }
-function parse_BrtShortBool(data) {
-	var cell = parse_XLSBShortCell(data);
-	var fBool = data.read_shift(1);
-	return [cell, fBool, 'b'];
-}
-function write_BrtShortBool(cell, ncell, o) {
-	if(o == null) o = new_buf(5);
-	write_XLSBShortCell(ncell, o);
-	o.write_shift(1, cell.v ? 1 : 0);
-	return o;
-}

 /* [MS-XLSB] 2.4.308 BrtCellError */
 function parse_BrtCellError(data) {
@ -152,26 +124,6 @@ function parse_BrtCellError(data) {
 	var bError = data.read_shift(1);
 	return [cell, bError, 'e'];
 }
-function write_BrtCellError(cell, ncell, o) {
-	if(o == null) o = new_buf(9);
-	write_XLSBCell(ncell, o);
-	o.write_shift(1, cell.v);
-	return o;
-}
-function parse_BrtShortError(data) {
-	var cell = parse_XLSBShortCell(data);
-	var bError = data.read_shift(1);
-	return [cell, bError, 'e'];
-}
-function write_BrtShortError(cell, ncell, o) {
-	if(o == null) o = new_buf(8);
-	write_XLSBShortCell(ncell, o);
-	o.write_shift(1, cell.v);
-	o.write_shift(2, 0);
-	o.write_shift(1, 0);
-	return o;
-}
-

 /* [MS-XLSB] 2.4.311 BrtCellIsst */
 function parse_BrtCellIsst(data) {
@ -185,17 +137,6 @@ function write_BrtCellIsst(cell, ncell, o) {
 	o.write_shift(4, ncell.v);
 	return o;
 }
-function parse_BrtShortIsst(data) {
-	var cell = parse_XLSBShortCell(data);
-	var isst = data.read_shift(4);
-	return [cell, isst, 's'];
-}
-function write_BrtShortIsst(cell, ncell, o) {
-	if(o == null) o = new_buf(8);
-	write_XLSBShortCell(ncell, o);
-	o.write_shift(4, ncell.v);
-	return o;
-}

 /* [MS-XLSB] 2.4.313 BrtCellReal */
 function parse_BrtCellReal(data) {
@ -209,17 +150,6 @@ function write_BrtCellReal(cell, ncell, o) {
 	write_Xnum(cell.v, o);
 	return o;
 }
-function parse_BrtShortReal(data) {
-	var cell = parse_XLSBShortCell(data);
-	var value = parse_Xnum(data);
-	return [cell, value, 'n'];
-}
-function write_BrtShortReal(cell, ncell, o) {
-	if(o == null) o = new_buf(12);
-	write_XLSBShortCell(ncell, o);
-	write_Xnum(cell.v, o);
-	return o;
-}

 /* [MS-XLSB] 2.4.314 BrtCellRk */
 function parse_BrtCellRk(data) {
@ -233,24 +163,7 @@ function write_BrtCellRk(cell, ncell, o) {
 	write_RkNumber(cell.v, o);
 	return o;
 }
-function parse_BrtShortRk(data) {
-	var cell = parse_XLSBShortCell(data);
-	var value = parse_RkNumber(data);
-	return [cell, value, 'n'];
-}
-function write_BrtShortRk(cell, ncell, o) {
-	if(o == null) o = new_buf(8);
-	write_XLSBShortCell(ncell, o);
-	write_RkNumber(cell.v, o);
-	return o;
-}

-/* [MS-XLSB] 2.4.323 BrtCellRString */
-function parse_BrtCellRString(data) {
-	var cell = parse_XLSBCell(data);
-	var value = parse_RichStr(data);
-	return [cell, value, 'is'];
-}

 /* [MS-XLSB] 2.4.317 BrtCellSt */
 function parse_BrtCellSt(data) {
@ -259,22 +172,9 @@ function parse_BrtCellSt(data) {
 	return [cell, value, 'str'];
 }
 function write_BrtCellSt(cell, ncell, o) {
-	var data = cell.v == null ? "" : String(cell.v);
 	if(o == null) o = new_buf(12 + 4 * cell.v.length);
 	write_XLSBCell(ncell, o);
-	write_XLWideString(data, o);
-	return o.length > o.l ? o.slice(0, o.l) : o;
-}
-function parse_BrtShortSt(data) {
-	var cell = parse_XLSBShortCell(data);
-	var value = parse_XLWideString(data);
-	return [cell, value, 'str'];
-}
-function write_BrtShortSt(cell, ncell, o) {
-	var data = cell.v == null ? "" : String(cell.v);
-	if(o == null) o = new_buf(8 + 4 * data.length);
-	write_XLSBShortCell(ncell, o);
-	write_XLWideString(data, o);
+	write_XLWideString(cell.v, o);
 	return o.length > o.l ? o.slice(0, o.l) : o;
 }

@ -377,10 +277,6 @@ function write_BrtHLink(l, rId) {
 	return o.slice(0, o.l);
 }

-/* [MS-XLSB] 2.4.692 BrtPane */
-function parse_BrtPane(/*data, length, opts*/) {
-}
-
 /* [MS-XLSB] 2.4.6 BrtArrFmla */
 function parse_BrtArrFmla(data, length, opts) {
 	var end = data.l + length;
@ -419,8 +315,8 @@ function write_BrtColInfo(C/*:number*/, col, o) {
 	var flags = 0;
 	if(col.hidden) flags |= 0x01;
 	if(typeof p.width == 'number') flags |= 0x02;
-	if(col.level) flags |= (col.level << 8);
-	o.write_shift(2, flags); // bit flag
+	o.write_shift(1, flags); // bit flag
+	o.write_shift(1, 0); // bit flag
 	return o;
 }

@ -501,22 +397,17 @@ function write_BrtSheetProtection(sp, o) {
 	return o;
 }

-function parse_BrtDVal(/*data, length, opts*/) {
-}
-function parse_BrtDVal14(/*data, length, opts*/) {
-}
 /* [MS-XLSB] 2.1.7.61 Worksheet */
 function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/*:Worksheet*/ {
 	if(!data) return data;
 	var opts = _opts || {};
 	if(!rels) rels = {'!id':{}};
 	if(DENSE != null && opts.dense == null) opts.dense = DENSE;
-	var s/*:Worksheet*/ = ({}); if(opts.dense) s["!data"] = [];
+	var s/*:Worksheet*/ = (opts.dense ? [] : {});

 	var ref;
 	var refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };

-	var state/*:Array<string>*/ = [];
 	var pass = false, end = false;
 	var row, p, cf, R, C, addr, sstr, rr, cell/*:Cell*/;
 	var merges/*:Array<Range>*/ = [];
@ -527,7 +418,7 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/

 	var arrayf/*:Array<[Range, string]>*/ = [];
 	var sharedf = {};
-	var supbooks = opts.supbooks || /*::(*/wb/*:: :any)*/.supbooks || ([[]]/*:any*/);
+	var supbooks = opts.supbooks || ([[]]/*:any*/);
 	supbooks.sharedf = sharedf;
 	supbooks.arrayf = arrayf;
 	supbooks.SheetNames = wb.SheetNames || wb.Sheets.map(function(x) { return x.name; });
@ -539,11 +430,7 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 	var colinfo/*:Array<ColInfo>*/ = [], rowinfo/*:Array<RowInfo>*/ = [];
 	var seencol = false;

-	XLSBRecordEnum[0x0010] = { n:"BrtShortReal", f:parse_BrtShortReal };
-
-	var cm, vm;
-
-	recordhopper(data, function ws_parse(val, RR, RT) {
+	recordhopper(data, function ws_parse(val, R_n, RT) {
 		if(end) return;
 		switch(RT) {
 			case 0x0094: /* 'BrtWsDim' */
@ -569,13 +456,6 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 			case 0x0009: /* 'BrtFmlaNum' */
 			case 0x000A: /* 'BrtFmlaBool' */
 			case 0x000B: /* 'BrtFmlaError' */
-			case 0x000D: /* 'BrtShortRk' */
-			case 0x000E: /* 'BrtShortError' */
-			case 0x000F: /* 'BrtShortBool' */
-			case 0x0010: /* 'BrtShortReal' */
-			case 0x0011: /* 'BrtShortSt' */
-			case 0x0012: /* 'BrtShortIsst' */
-			case 0x003E: /* 'BrtCellRString' */
 				p = ({t:val[2]}/*:any*/);
 				switch(val[2]) {
 					case 'n': p.v = val[1]; break;
@ -583,11 +463,10 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 					case 'b': p.v = val[1] ? true : false; break;
 					case 'e': p.v = val[1]; if(opts.cellText !== false) p.w = BErr[p.v]; break;
 					case 'str': p.t = 's'; p.v = val[1]; break;
-					case 'is': p.t = 's'; p.v = val[1].t; break;
 				}
 				if((cf = styles.CellXf[val[0].iStyleRef])) safe_format(p,cf.numFmtId,null,opts, themes, styles);
-				C = val[0].c == -1 ? C + 1 : val[0].c;
-				if(opts.dense) { if(!s["!data"][R]) s["!data"][R] = []; s["!data"][R][C] = p; }
+				C = val[0].c;
+				if(opts.dense) { if(!s[R]) s[R] = []; s[R][C] = p; }
 				else s[encode_col(C) + rr] = p;
 				if(opts.cellFormula) {
 					af = false;
@ -600,46 +479,30 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 					}
 					if(!af && val.length > 3) p.f = val[3];
 				}
-
 				if(refguess.s.r > row.r) refguess.s.r = row.r;
 				if(refguess.s.c > C) refguess.s.c = C;
 				if(refguess.e.r < row.r) refguess.e.r = row.r;
 				if(refguess.e.c < C) refguess.e.c = C;
-				if(opts.cellDates && cf && p.t == 'n' && fmt_is_date(table_fmt[cf.numFmtId])) {
-					var _d = SSF_parse_date_code(p.v); if(_d) { p.t = 'd'; p.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
+				if(opts.cellDates && cf && p.t == 'n' && SSF.is_date(SSF._table[cf.numFmtId])) {
+					var _d = SSF.parse_date_code(p.v); if(_d) { p.t = 'd'; p.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
 				}
-				if(cm) {
-					if(cm.type == 'XLDAPR') p.D = true;
-					cm = void 0;
-				}
-				if(vm) vm = void 0;
 				break;

 			case 0x0001: /* 'BrtCellBlank' */
-			case 0x000C: /* 'BrtShortBlank' */
 				if(!opts.sheetStubs || pass) break;
-				p = ({t:'z',v:void 0}/*:any*/);
-				C = val[0].c == -1 ? C + 1 : val[0].c;
-				if(opts.dense) { if(!s["!data"][R]) s["!data"][R] = []; s["!data"][R][C] = p; }
+				p = ({t:'z',v:undefined}/*:any*/);
+				C = val[0].c;
+				if(opts.dense) { if(!s[R]) s[R] = []; s[R][C] = p; }
 				else s[encode_col(C) + rr] = p;
 				if(refguess.s.r > row.r) refguess.s.r = row.r;
 				if(refguess.s.c > C) refguess.s.c = C;
 				if(refguess.e.r < row.r) refguess.e.r = row.r;
 				if(refguess.e.c < C) refguess.e.c = C;
-				if(cm) {
-					if(cm.type == 'XLDAPR') p.D = true;
-					cm = void 0;
-				}
-				if(vm) vm = void 0;
 				break;

 			case 0x00B0: /* 'BrtMergeCell' */
 				merges.push(val); break;

-			case 0x0031: { /* 'BrtCellMeta' */
-				cm = ((opts.xlmeta||{}).Cell||[])[val-1];
-			} break;
-
 			case 0x01EE: /* 'BrtHLink' */
 				var rel = rels['!id'][val.relId];
 				if(rel) {
@ -651,11 +514,11 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 				}
 				for(R=val.rfx.s.r;R<=val.rfx.e.r;++R) for(C=val.rfx.s.c;C<=val.rfx.e.c;++C) {
 					if(opts.dense) {
-						if(!s["!data"][R]) s["!data"][R] = [];
-						if(!s["!data"][R][C]) s["!data"][R][C] = {t:'z',v:undefined};
-						s["!data"][R][C].l = val;
+						if(!s[R]) s[R] = [];
+						if(!s[R][C]) s[R][C] = {t:'z',v:undefined};
+						s[R][C].l = val;
 					} else {
-						addr = encode_col(C) + encode_row(R);
+						addr = encode_cell({c:C,r:R});
 						if(!s[addr]) s[addr] = {t:'z',v:undefined};
 						s[addr].l = val;
 					}
@ -665,14 +528,14 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 			case 0x01AA: /* 'BrtArrFmla' */
 				if(!opts.cellFormula) break;
 				arrayf.push(val);
-				cell = ((opts.dense ? s["!data"][R][C] : s[encode_col(C) + rr])/*:any*/);
+				cell = ((opts.dense ? s[R][C] : s[encode_col(C) + rr])/*:any*/);
 				cell.f = stringify_formula(val[1], refguess, {r:row.r, c:C}, supbooks, opts);
 				cell.F = encode_range(val[0]);
 				break;
 			case 0x01AB: /* 'BrtShrFmla' */
 				if(!opts.cellFormula) break;
 				sharedf[encode_cell(val[0].s)] = val[1];
-				cell = (opts.dense ? s["!data"][R][C] : s[encode_col(C) + rr]);
+				cell = (opts.dense ? s[R][C] : s[encode_col(C) + rr]);
 				cell.f = stringify_formula(val[1], refguess, {r:row.r, c:C}, supbooks, opts);
 				break;

@ -680,7 +543,7 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 			case 0x003C: /* 'BrtColInfo' */
 				if(!opts.cellStyles) break;
 				while(val.e >= val.s) {
-					colinfo[val.e--] = { width: val.w/256, hidden: !!(val.flags & 0x01), level: val.level };
+					colinfo[val.e--] = { width: val.w/256, hidden: !!(val.flags & 0x01) };
 					if(!seencol) { seencol = true; find_mdw_colw(val.w/256); }
 					process_col(colinfo[val.e+1]);
 				}
@ -697,7 +560,6 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 			case 0x0093: /* 'BrtWsProp' */
 				if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
 				if(val.name) wb.Sheets[idx].CodeName = val.name;
-				if(val.above || val.left) s['!outline'] = { above: val.above, left: val.left };
 				break;

 			case 0x0089: /* 'BrtBeginWsView' */
@ -708,14 +570,6 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/

 			case 0x01E5: /* 'BrtWsFmtInfo' */
 				break;
-
-			case 0x0040: /* 'BrtDVal' */
-			case 0x041D: /* 'BrtDVal14' */
-				break;
-
-			case 0x0097: /* 'BrtPane' */
-				break;
-			case 0x0098: /* 'BrtSel' */
 			case 0x00AF: /* 'BrtAFilterDateGroupItem' */
 			case 0x0284: /* 'BrtActiveX' */
 			case 0x0271: /* 'BrtBigName' */
@ -727,6 +581,7 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 			case 0x041A: /* 'BrtCFVO14' */
 			case 0x0289: /* 'BrtCellIgnoreEC' */
 			case 0x0451: /* 'BrtCellIgnoreEC14' */
+			case 0x0031: /* 'BrtCellMeta' */
 			case 0x024D: /* 'BrtCellSmartTagProperty' */
 			case 0x025F: /* 'BrtCellWatch' */
 			case 0x0234: /* 'BrtColor' */
@ -735,7 +590,8 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 			case 0x00AE: /* 'BrtCustomFilter' */
 			case 0x049C: /* 'BrtCustomFilter14' */
 			case 0x01F3: /* 'BrtDRef' */
-			case 0x01FB: /* 'BrtDXF' */
+			case 0x0040: /* 'BrtDVal' */
+			case 0x041D: /* 'BrtDVal14' */
 			case 0x0226: /* 'BrtDrawing' */
 			case 0x00AB: /* 'BrtDynamicFilter' */
 			case 0x00A7: /* 'BrtFilter' */
@ -747,6 +603,7 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 			case 0x0295: /* 'BrtListPart' */
 			case 0x027F: /* 'BrtOleObject' */
 			case 0x01DE: /* 'BrtPageSetup' */
+			case 0x0097: /* 'BrtPane' */
 			case 0x0219: /* 'BrtPhoneticInfo' */
 			case 0x01DD: /* 'BrtPrintOptions' */
 			case 0x0218: /* 'BrtRangeProtection' */
@ -754,6 +611,7 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 			case 0x02A8: /* 'BrtRangeProtectionIso' */
 			case 0x0450: /* 'BrtRangeProtectionIso14' */
 			case 0x0400: /* 'BrtRwDescent' */
+			case 0x0098: /* 'BrtSel' */
 			case 0x0297: /* 'BrtSheetCalcProp' */
 			case 0x0217: /* 'BrtSheetProtection' */
 			case 0x02A6: /* 'BrtSheetProtectionIso' */
@ -771,14 +629,13 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 				pass = true; break;
 			case 0x0024: /* 'BrtFRTEnd' */
 				pass = false; break;
-			case 0x0025: /* 'BrtACBegin' */
-				state.push(RT); pass = true; break;
-			case 0x0026: /* 'BrtACEnd' */
-				state.pop(); pass = false; break;
+			case 0x0025: /* 'BrtACBegin' */ break;
+			case 0x0026: /* 'BrtACEnd' */ break;

 			default:
-				if(RR.T){/* empty */}
-				else if(!pass || opts.WTF) throw new Error("Unexpected record 0x" + RT.toString(16));
+				if((R_n||"").indexOf("Begin") > 0){/* empty */}
+				else if((R_n||"").indexOf("End") > 0){/* empty */}
+				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
 		}
 	}, opts);

@ -805,67 +662,54 @@ function parse_ws_bin(data, _opts, idx, rels, wb/*:WBWBProps*/, themes, styles)/
 }

 /* TODO: something useful -- this is a stub */
-function write_ws_bin_cell(ba/*:BufArray*/, cell/*:Cell*/, R/*:number*/, C/*:number*/, opts, ws/*:Worksheet*/, last_seen/*:boolean*/)/*:boolean*/ {
-	var o/*:any*/ = ({r:R, c:C}/*:any*/);
-	if(cell.c) ws['!comments'].push([encode_cell(o), cell.c]);
-	if(cell.v === undefined) return false;
+function write_ws_bin_cell(ba/*:BufArray*/, cell/*:Cell*/, R/*:number*/, C/*:number*/, opts, ws/*:Worksheet*/) {
+	if(cell.v === undefined) return "";
 	var vv = "";
 	switch(cell.t) {
 		case 'b': vv = cell.v ? "1" : "0"; break;
 		case 'd': // no BrtCellDate :(
 			cell = dup(cell);
-			cell.z = cell.z || table_fmt[14];
+			cell.z = cell.z || SSF._table[14];
 			cell.v = datenum(parseDate(cell.v)); cell.t = 'n';
 			break;
 		/* falls through */
 		case 'n': case 'e': vv = ''+cell.v; break;
 		default: vv = cell.v; break;
 	}
+	var o/*:any*/ = ({r:R, c:C}/*:any*/);
 	/* TODO: cell style */
 	o.s = get_cell_style(opts.cellXfs, cell, opts);
 	if(cell.l) ws['!links'].push([encode_cell(o), cell.l]);
+	if(cell.c) ws['!comments'].push([encode_cell(o), cell.c]);
 	switch(cell.t) {
 		case 's': case 'str':
 			if(opts.bookSST) {
-				vv = get_sst_id(opts.Strings, (cell.v == null ? "" : String(cell.v)/*:any*/), opts.revStrings);
+				vv = get_sst_id(opts.Strings, (cell.v/*:any*/));
 				o.t = "s"; o.v = vv;
-				if(last_seen) write_record(ba, 0x0012 /* BrtShortIsst */, write_BrtShortIsst(cell, o));
-				else write_record(ba, 0x0007 /* BrtCellIsst */, write_BrtCellIsst(cell, o));
+				write_record(ba, "BrtCellIsst", write_BrtCellIsst(cell, o));
 			} else {
 				o.t = "str";
-				if(last_seen) write_record(ba, 0x0011 /* BrtShortSt */, write_BrtShortSt(cell, o));
-				else write_record(ba, 0x0006 /* BrtCellSt */, write_BrtCellSt(cell, o));
+				write_record(ba, "BrtCellSt", write_BrtCellSt(cell, o));
 			}
-			return true;
+			return;
 		case 'n':
 			/* TODO: determine threshold for Real vs RK */
-			if(cell.v == (cell.v | 0) && cell.v > -1000 && cell.v < 1000) {
-				if(last_seen) write_record(ba, 0x000D /* BrtShortRk */, write_BrtShortRk(cell, o));
-				else write_record(ba, 0x0002 /* BrtCellRk */, write_BrtCellRk(cell, o));
-			} else {
-				if(last_seen) write_record(ba, 0x0010 /* BrtShortReal */, write_BrtShortReal(cell, o));
-				else write_record(ba, 0x0005 /* BrtCellReal */, write_BrtCellReal(cell, o));
-			} return true;
+			if(cell.v == (cell.v | 0) && cell.v > -1000 && cell.v < 1000) write_record(ba, "BrtCellRk", write_BrtCellRk(cell, o));
+			else write_record(ba, "BrtCellReal", write_BrtCellReal(cell, o));
+			return;
 		case 'b':
 			o.t = "b";
-			if(last_seen) write_record(ba, 0x000F /* BrtShortBool */, write_BrtShortBool(cell, o));
-			else write_record(ba, 0x0004 /* BrtCellBool */, write_BrtCellBool(cell, o));
-			return true;
-		case 'e':
-			o.t = "e";
-			if(last_seen) write_record(ba, 0x000E /* BrtShortError */, write_BrtShortError(cell, o));
-			else write_record(ba, 0x0003 /* BrtCellError */, write_BrtCellError(cell, o));
-			return true;
+			write_record(ba, "BrtCellBool", write_BrtCellBool(cell, o));
+			return;
+		case 'e': /* TODO: error */ o.t = "e"; break;
 	}
-	if(last_seen) write_record(ba, 0x000C /* BrtShortBlank */, write_BrtShortBlank(cell, o));
-	else write_record(ba, 0x0001 /* BrtCellBlank */, write_BrtCellBlank(cell, o));
-	return true;
+	write_record(ba, "BrtCellBlank", write_BrtCellBlank(cell, o));
 }

 function write_CELLTABLE(ba, ws/*:Worksheet*/, idx/*:number*/, opts/*::, wb:Workbook*/) {
 	var range = safe_decode_range(ws['!ref'] || "A1"), ref, rr = "", cols/*:Array<string>*/ = [];
-	write_record(ba, 0x0091 /* BrtBeginSheetData */);
-	var dense = ws["!data"] != null;
+	write_record(ba, 'BrtBeginSheetData');
+	var dense = Array.isArray(ws);
 	var cap = range.e.r;
 	if(ws['!rows']) cap = Math.max(range.e.r, ws['!rows'].length - 1);
 	for(var R = range.s.r; R <= cap; ++R) {
@ -873,39 +717,38 @@ function write_CELLTABLE(ba, ws/*:Worksheet*/, idx/*:number*/, opts/*::, wb:Work
 		/* [ACCELLTABLE] */
 		/* BrtRowHdr */
 		write_row_header(ba, ws, range, R);
-		var last_seen = false;
 		if(R <= range.e.r) for(var C = range.s.c; C <= range.e.c; ++C) {
 			/* *16384CELL */
 			if(R === range.s.r) cols[C] = encode_col(C);
 			ref = cols[C] + rr;
-			var cell = dense ? (ws["!data"][R]||[])[C] : ws[ref];
-			if(!cell) { last_seen = false; continue; }
+			var cell = dense ? (ws[R]||[])[C] : ws[ref];
+			if(!cell) continue;
 			/* write cell */
-			last_seen = write_ws_bin_cell(ba, cell, R, C, opts, ws, last_seen);
+			write_ws_bin_cell(ba, cell, R, C, opts, ws);
 		}
 	}
-	write_record(ba, 0x0092 /* BrtEndSheetData */);
+	write_record(ba, 'BrtEndSheetData');
 }

 function write_MERGECELLS(ba, ws/*:Worksheet*/) {
 	if(!ws || !ws['!merges']) return;
-	write_record(ba, 0x00B1 /* BrtBeginMergeCells */, write_BrtBeginMergeCells(ws['!merges'].length));
-	ws['!merges'].forEach(function(m) { write_record(ba, 0x00B0 /* BrtMergeCell */, write_BrtMergeCell(m)); });
-	write_record(ba, 0x00B2 /* BrtEndMergeCells */);
+	write_record(ba, 'BrtBeginMergeCells', write_BrtBeginMergeCells(ws['!merges'].length));
+	ws['!merges'].forEach(function(m) { write_record(ba, 'BrtMergeCell', write_BrtMergeCell(m)); });
+	write_record(ba, 'BrtEndMergeCells');
 }

 function write_COLINFOS(ba, ws/*:Worksheet*//*::, idx:number, opts, wb:Workbook*/) {
 	if(!ws || !ws['!cols']) return;
-	write_record(ba, 0x0186 /* BrtBeginColInfos */);
-	ws['!cols'].forEach(function(m, i) { if(m) write_record(ba, 0x003C /* 'BrtColInfo' */, write_BrtColInfo(i, m)); });
-	write_record(ba, 0x0187 /* BrtEndColInfos */);
+	write_record(ba, 'BrtBeginColInfos');
+	ws['!cols'].forEach(function(m, i) { if(m) write_record(ba, 'BrtColInfo', write_BrtColInfo(i, m)); });
+	write_record(ba, 'BrtEndColInfos');
 }

 function write_IGNOREECS(ba, ws/*:Worksheet*/) {
 	if(!ws || !ws['!ref']) return;
-	write_record(ba, 0x0288 /* BrtBeginCellIgnoreECs */);
-	write_record(ba, 0x0289 /* BrtCellIgnoreEC */, write_BrtCellIgnoreEC(safe_decode_range(ws['!ref'])));
-	write_record(ba, 0x028A /* BrtEndCellIgnoreECs */);
+	write_record(ba, 'BrtBeginCellIgnoreECs');
+	write_record(ba, 'BrtCellIgnoreEC', write_BrtCellIgnoreEC(safe_decode_range(ws['!ref'])));
+	write_record(ba, 'BrtEndCellIgnoreECs');
 }

 function write_HLINKS(ba, ws/*:Worksheet*/, rels) {
@ -913,7 +756,7 @@ function write_HLINKS(ba, ws/*:Worksheet*/, rels) {
 	ws['!links'].forEach(function(l) {
 		if(!l[1].Target) return;
 		var rId = add_rels(rels, -1, l[1].Target.replace(/#.*$/, ""), RELS.HLINK);
-		write_record(ba, 0x01EE /* BrtHLink */, write_BrtHLink(l, rId));
+		write_record(ba, "BrtHLink", write_BrtHLink(l, rId));
 	});
 	delete ws['!links'];
 }
@ -921,61 +764,44 @@ function write_LEGACYDRAWING(ba, ws/*:Worksheet*/, idx/*:number*/, rels) {
 	/* [BrtLegacyDrawing] */
 	if(ws['!comments'].length > 0) {
 		var rId = add_rels(rels, -1, "../drawings/vmlDrawing" + (idx+1) + ".vml", RELS.VML);
-		write_record(ba, 0x0227 /* BrtLegacyDrawing */, write_RelID("rId" + rId));
+		write_record(ba, "BrtLegacyDrawing", write_RelID("rId" + rId));
 		ws['!legacy'] = rId;
 	}
 }

-function write_AUTOFILTER(ba, ws, wb, idx) {
+function write_AUTOFILTER(ba, ws) {
 	if(!ws['!autofilter']) return;
-	var data = ws['!autofilter'];
-	var ref = typeof data.ref === "string" ? data.ref : encode_range(data.ref);
-
-	/* Update FilterDatabase defined name for the worksheet */
-	if(!wb.Workbook) wb.Workbook = ({Sheets:[]}/*:any*/);
-	if(!wb.Workbook.Names) wb.Workbook.Names = [];
-	var names/*: Array<any> */ = wb.Workbook.Names;
-	var range = decode_range(ref);
-	if(range.s.r == range.e.r) { range.e.r = decode_range(ws["!ref"]).e.r; ref = encode_range(range); }
-	for(var i = 0; i < names.length; ++i) {
-		var name = names[i];
-		if(name.Name != '_xlnm._FilterDatabase') continue;
-		if(name.Sheet != idx) continue;
-		name.Ref = formula_quote_sheet_name(wb.SheetNames[idx]) + "!" + fix_range(ref); break;
-	}
-	if(i == names.length) names.push({ Name: '_xlnm._FilterDatabase', Sheet: idx, Ref: formula_quote_sheet_name(wb.SheetNames[idx]) + "!" + fix_range(ref)  });
-
-	write_record(ba, 0x00A1 /* BrtBeginAFilter */, write_UncheckedRfX(safe_decode_range(ref)));
+	write_record(ba, "BrtBeginAFilter", write_UncheckedRfX(safe_decode_range(ws['!autofilter'].ref)));
 	/* *FILTERCOLUMN */
 	/* [SORTSTATE] */
 	/* BrtEndAFilter */
-	write_record(ba, 0x00A2 /* BrtEndAFilter */);
+	write_record(ba, "BrtEndAFilter");
 }

 function write_WSVIEWS2(ba, ws, Workbook) {
-	write_record(ba, 0x0085 /* BrtBeginWsViews */);
+	write_record(ba, "BrtBeginWsViews");
 	{ /* 1*WSVIEW2 */
 		/* [ACUID] */
-		write_record(ba, 0x0089 /* BrtBeginWsView */, write_BrtBeginWsView(ws, Workbook));
+		write_record(ba, "BrtBeginWsView", write_BrtBeginWsView(ws, Workbook));
 		/* [BrtPane] */
 		/* *4BrtSel */
 		/* *4SXSELECT */
 		/* *FRT */
-		write_record(ba, 0x008A /* BrtEndWsView */);
+		write_record(ba, "BrtEndWsView");
 	}
 	/* *FRT */
-	write_record(ba, 0x0086 /* BrtEndWsViews */);
+	write_record(ba, "BrtEndWsViews");
 }

 function write_WSFMTINFO(/*::ba, ws*/) {
 	/* [ACWSFMTINFO] */
-	// write_record(ba, 0x01E5 /* BrtWsFmtInfo */, write_BrtWsFmtInfo(ws));
+	//write_record(ba, "BrtWsFmtInfo", write_BrtWsFmtInfo(ws));
 }

 function write_SHEETPROTECT(ba, ws) {
 	if(!ws['!protect']) return;
 	/* [BrtSheetProtectionIso] */
-	write_record(ba, 0x0217 /* BrtSheetProtection */, write_BrtSheetProtection(ws['!protect']));
+	write_record(ba, "BrtSheetProtection", write_BrtSheetProtection(ws['!protect']));
 }

 function write_ws_bin(idx/*:number*/, opts, wb/*:Workbook*/, rels) {
@ -991,9 +817,9 @@ function write_ws_bin(idx/*:number*/, opts, wb/*:Workbook*/, rels) {
 	ws['!links'] = [];
 	/* passed back to write_zip and removed there */
 	ws['!comments'] = [];
-	write_record(ba, 0x0081 /* BrtBeginSheet */);
-	if(wb.vbaraw || ws['!outline']) write_record(ba, 0x0093 /* BrtWsProp */, write_BrtWsProp(c, ws['!outline']));
-	write_record(ba, 0x0094 /* BrtWsDim */, write_BrtWsDim(r));
+	write_record(ba, "BrtBeginSheet");
+	if(wb.vbaraw) write_record(ba, "BrtWsProp", write_BrtWsProp(c));
+	write_record(ba, "BrtWsDim", write_BrtWsDim(r));
 	write_WSVIEWS2(ba, ws, wb.Workbook);
 	write_WSFMTINFO(ba, ws);
 	write_COLINFOS(ba, ws, idx, opts, wb);
@ -1002,7 +828,7 @@ function write_ws_bin(idx/*:number*/, opts, wb/*:Workbook*/, rels) {
 	write_SHEETPROTECT(ba, ws);
 	/* *([BrtRangeProtectionIso] BrtRangeProtection) */
 	/* [SCENMAN] */
-	write_AUTOFILTER(ba, ws, wb, idx);
+	write_AUTOFILTER(ba, ws);
 	/* [SORTSTATE] */
 	/* [DCON] */
 	/* [USERSHVIEWS] */
@ -1012,14 +838,14 @@ function write_ws_bin(idx/*:number*/, opts, wb/*:Workbook*/, rels) {
 	/* [DVALS] */
 	write_HLINKS(ba, ws, rels);
 	/* [BrtPrintOptions] */
-	if(ws['!margins']) write_record(ba, 0x01DC /* BrtMargins */, write_BrtMargins(ws['!margins']));
+	if(ws['!margins']) write_record(ba, "BrtMargins", write_BrtMargins(ws['!margins']));
 	/* [BrtPageSetup] */
 	/* [HEADERFOOTER] */
 	/* [RWBRK] */
 	/* [COLBRK] */
 	/* *BrtBigName */
 	/* [CELLWATCHES] */
-	if(!opts || opts.ignoreEC || (opts.ignoreEC == (void 0))) write_IGNOREECS(ba, ws);
+	write_IGNOREECS(ba, ws);
 	/* [SMARTTAGS] */
 	/* [BrtDrawing] */
 	write_LEGACYDRAWING(ba, ws, idx, rels);
@ -1030,6 +856,6 @@ function write_ws_bin(idx/*:number*/, opts, wb/*:Workbook*/, rels) {
 	/* [WEBPUBITEMS] */
 	/* [LISTPARTS] */
 	/* FRTWORKSHEET */
-	write_record(ba, 0x0082 /* BrtEndSheet */);
+	write_record(ba, "BrtEndSheet");
 	return ba.end();
 }
--- a/bits/69_chartxml.js
+++ b/bits/69_chartxml.js
@ -1,21 +1,17 @@
-function parse_Cache(data/*:string*/)/*:[Array<number|string>, string, ?string]*/ {
-	var col/*:Array<number|string>*/ = [];
-	var num = data.match(/^<c:numCache>/);
-	var f;
+function parse_numCache(data/*:string*/)/*:[Array<number>, string]*/ {
+	var col/*:Array<number>*/ = [];

 	/* 21.2.2.150 pt CT_NumVal */
 	(data.match(/<c:pt idx="(\d*)">(.*?)<\/c:pt>/mg)||[]).forEach(function(pt) {
 		var q = pt.match(/<c:pt idx="(\d*?)"><c:v>(.*)<\/c:v><\/c:pt>/);
 		if(!q) return;
-		col[+q[1]] = num ? +q[2] : q[2];
+		col[+q[1]] = +q[2];
 	});

 	/* 21.2.2.71 formatCode CT_Xstring */
 	var nf = unescapexml((data.match(/<c:formatCode>([\s\S]*?)<\/c:formatCode>/) || ["","General"])[1]);

-	(data.match(/<c:f>(.*?)<\/c:f>/mg)||[]).forEach(function(F) { f = F.replace(/<.*?>/g,""); });
-
-	return [col, nf, f];
+	return [col, nf];
 }

 /* 21.2 DrawingML - Charts */
@ -29,15 +25,12 @@ function parse_chart(data/*:?string*/, name/*:string*/, opts, rels, wb, csheet)

 	/* 21.2.2.120 numCache CT_NumData */
 	(data.match(/<c:numCache>[\s\S]*?<\/c:numCache>/gm)||[]).forEach(function(nc) {
-		var cache = parse_Cache(nc);
+		var cache = parse_numCache(nc);
 		refguess.s.r = refguess.s.c = 0;
 		refguess.e.c = C;
 		col = encode_col(C);
 		cache[0].forEach(function(n,i) {
-			if(cs["!data"]) {
-				if(!cs["!data"][i]) cs["!data"][i] = [];
-				cs["!data"][i][C] = {t:'n', v:n, z:cache[1] };
-			} else cs[col + encode_row(i)] = {t:'n', v:n, z:cache[1] };
+			cs[col + encode_row(i)] = {t:'n', v:n, z:cache[1] };
 			R = i;
 		});
 		if(refguess.e.r < R) refguess.e.r = R;
--- a/bits/70_csheet.js
+++ b/bits/70_csheet.js
@ -1,9 +1,16 @@
+RELS.CS = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chartsheet";
+
+var CS_XML_ROOT = writextag('chartsheet', null, {
+	'xmlns': XMLNS.main[0],
+	'xmlns:r': XMLNS.r
+});
+
 /* 18.3 Worksheets also covers Chartsheets */
 function parse_cs_xml(data/*:?string*/, opts, idx/*:number*/, rels, wb/*::, themes, styles*/)/*:Worksheet*/ {
 	if(!data) return data;
 	/* 18.3.1.12 chartsheet CT_ChartSheet */
 	if(!rels) rels = {'!id':{}};
-	var s = ({'!type':"chart", '!drawel':null, '!rel':""}/*:any*/);
+	var s = {'!type':"chart", '!chart':null, '!rel':""};
 	var m;

 	/* 18.3.1.83 sheetPr CT_ChartsheetPr */
@ -13,19 +20,16 @@ function parse_cs_xml(data/*:?string*/, opts, idx/*:number*/, rels, wb/*::, them
 	/* 18.3.1.36 drawing CT_Drawing */
 	if((m = data.match(/drawing r:id="(.*?)"/))) s['!rel'] = m[1];

-	if(rels['!id'][s['!rel']]) s['!drawel'] = rels['!id'][s['!rel']];
+	if(rels['!id'][s['!rel']]) s['!chart'] = rels['!id'][s['!rel']];
 	return s;
 }
-//function write_cs_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
-//	var o = [XML_HEADER, writextag('chartsheet', null, {
-//		'xmlns': XMLNS_main[0],
-//		'xmlns:r': XMLNS.r
-//	})];
-//	o[o.length] = writextag("drawing", null, {"r:id": "rId1"});
-//	add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
-//	if(o.length>2) { o[o.length] = ('</chartsheet>'); o[1]=o[1].replace("/>",">"); }
-//	return o.join("");
-//}
+function write_cs_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
+	var o = [XML_HEADER, CS_XML_ROOT];
+	o[o.length] = writextag("drawing", null, {"r:id": "rId1"});
+	add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
+	if(o.length>2) { o[o.length] = ('</chartsheet>'); o[1]=o[1].replace("/>",">"); }
+	return o.join("");
+}

 /* [MS-XLSB] 2.4.331 BrtCsProp */
 function parse_BrtCsProp(data, length/*:number*/) {
@ -38,10 +42,10 @@ function parse_BrtCsProp(data, length/*:number*/) {
 function parse_cs_bin(data, opts, idx/*:number*/, rels, wb/*::, themes, styles*/)/*:Worksheet*/ {
 	if(!data) return data;
 	if(!rels) rels = {'!id':{}};
-	var s = {'!type':"chart", '!drawel':null, '!rel':""};
+	var s = {'!type':"chart", '!chart':null, '!rel':""};
 	var state/*:Array<string>*/ = [];
 	var pass = false;
-	recordhopper(data, function cs_parse(val, R, RT) {
+	recordhopper(data, function cs_parse(val, R_n, RT) {
 		switch(RT) {

 			case 0x0226: /* 'BrtDrawing' */
@ -67,36 +71,36 @@ function parse_cs_bin(data, opts, idx/*:number*/, rels, wb/*::, themes, styles*/
 			case 0x0024: /* 'BrtFRTEnd' */
 				pass = false; break;
 			case 0x0025: /* 'BrtACBegin' */
-				state.push(RT); break;
+				state.push(R_n); break;
 			case 0x0026: /* 'BrtACEnd' */
 				state.pop(); break;

 			default:
-				if(R.T > 0) state.push(RT);
-				else if(R.T < 0) state.pop();
-				else if(!pass || opts.WTF) throw new Error("Unexpected record 0x" + RT.toString(16));
+				if((R_n||"").indexOf("Begin") > 0) state.push(R_n);
+				else if((R_n||"").indexOf("End") > 0) state.pop();
+				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
 		}
 	}, opts);

-	if(rels['!id'][s['!rel']]) s['!drawel'] = rels['!id'][s['!rel']];
+	if(rels['!id'][s['!rel']]) s['!chart'] = rels['!id'][s['!rel']];
 	return s;
 }
-//function write_cs_bin(/*::idx:number, opts, wb:Workbook, rels*/) {
-//	var ba = buf_array();
-//	write_record(ba, 0x0081 /* BrtBeginSheet */);
-//	/* [BrtCsProp] */
-//	/* CSVIEWS */
-//	/* [[BrtCsProtectionIso] BrtCsProtection] */
-//	/* [USERCSVIEWS] */
-//	/* [BrtMargins] */
-//	/* [BrtCsPageSetup] */
-//	/* [HEADERFOOTER] */
-//	/* BrtDrawing */
-//	/* [BrtLegacyDrawing] */
-//	/* [BrtLegacyDrawingHF] */
-//	/* [BrtBkHim] */
-//	/* [WEBPUBITEMS] */
-//	/* FRTCHARTSHEET */
-//	write_record(ba, 0x0082 /* BrtEndSheet */);
-//	return ba.end();
-//}
+function write_cs_bin(/*::idx:number, opts, wb:Workbook, rels*/) {
+	var ba = buf_array();
+	write_record(ba, "BrtBeginSheet");
+	/* [BrtCsProp] */
+	/* CSVIEWS */
+	/* [[BrtCsProtectionIso] BrtCsProtection] */
+	/* [USERCSVIEWS] */
+	/* [BrtMargins] */
+	/* [BrtCsPageSetup] */
+	/* [HEADERFOOTER] */
+	/* BrtDrawing */
+	/* [BrtLegacyDrawing] */
+	/* [BrtLegacyDrawingHF] */
+	/* [BrtBkHim] */
+	/* [WEBPUBITEMS] */
+	/* FRTCHARTSHEET */
+	write_record(ba, "BrtEndSheet");
+	return ba.end();
+}
--- a/bits/71_wbcommon.js
+++ b/bits/71_wbcommon.js
@ -113,7 +113,7 @@ function safe1904(wb/*:Workbook*/)/*:string*/ {
 	return parsexmlbool(wb.Workbook.WBProps.date1904) ? "true" : "false";
 }

-var badchars = /*#__PURE__*/":][*?\/\\".split("");
+var badchars = "][*?\/\\".split("");
 function check_ws_name(n/*:string*/, safe/*:?boolean*/)/*:boolean*/ {
 	if(n.length > 31) { if(safe) return false; throw new Error("Sheet names cannot exceed 31 chars"); }
 	var _good = true;
@ -140,16 +140,5 @@ function check_wb(wb) {
 	var Sheets = (wb.Workbook && wb.Workbook.Sheets) || [];
 	check_wb_names(wb.SheetNames, Sheets, !!wb.vbaraw);
 	for(var i = 0; i < wb.SheetNames.length; ++i) check_ws(wb.Sheets[wb.SheetNames[i]], wb.SheetNames[i], i);
-	wb.SheetNames.forEach(function(n, i) {
-		var ws = wb.Sheets[n];
-		if(!ws || !ws["!autofilter"]) return;
-		var DN;
-		if(!wb.Workbook) wb.Workbook = {};
-		if(!wb.Workbook.Names) wb.Workbook.Names = [];
-		wb.Workbook.Names.forEach(function(dn) { if(dn.Name == "_xlnm._FilterDatabase" && dn.Sheet == i) DN = dn; });
-		var nn = formula_quote_sheet_name(n) + "!" + fix_range(ws["!autofilter"].ref);
-		if(DN) DN.Ref = nn;
-		else wb.Workbook.Names.push({Name: "_xlnm._FilterDatabase", Sheet: i, Ref: nn});
-	});
 	/* TODO: validate workbook */
 }
--- a/bits/72_wbxml.js
+++ b/bits/72_wbxml.js
@ -2,7 +2,7 @@
 var wbnsregex = /<\w+:workbook/;
 function parse_wb_xml(data, opts)/*:WorkbookFile*/ {
 	if(!data) throw new Error("Could not find file");
-	var wb = /*::(*/{ AppVersion:{}, WBProps:{}, WBView:[], Sheets:[], CalcPr:{}, Names:[], xmlns: "" }/*::)*/;
+	var wb = { AppVersion:{}, WBProps:{}, WBView:[], Sheets:[], CalcPr:{}, Names:[], xmlns: "" };
 	var pass = false, xmlns = "xmlns";
 	var dname = {}, dnstart = 0;
 	data.replace(tagregex, function xml_wb(x, idx) {
@ -22,9 +22,7 @@ function parse_wb_xml(data, opts)/*:WorkbookFile*/ {
 			case '<fileVersion/>': case '</fileVersion>': break;

 			/* 18.2.12 fileSharing CT_FileSharing ? */
-			case '<fileSharing':
-				break;
-			case '<fileSharing/>': break;
+			case '<fileSharing': case '<fileSharing/>': break;

 			/* 18.2.28 workbookPr CT_WorkbookPr ? */
 			case '<workbookPr':
@ -37,13 +35,12 @@ function parse_wb_xml(data, opts)/*:WorkbookFile*/ {
 						default: wb.WBProps[w[0]] = y[w[0]];
 					}
 				});
-				if(y.codeName) wb.WBProps.CodeName = utf8read(y.codeName);
+				if(y.codeName) wb.WBProps.CodeName = y.codeName;
 				break;
 			case '</workbookPr>': break;

 			/* 18.2.29 workbookProtection CT_WorkbookProtection ? */
-			case '<workbookProtection':
-				break;
+			case '<workbookProtection': break;
 			case '<workbookProtection/>': break;

 			/* 18.2.1  bookViews CT_BookViews ? */
@ -83,14 +80,13 @@ function parse_wb_xml(data, opts)/*:WorkbookFile*/ {
 			/* 18.2.5    definedName CT_DefinedName + */
 			case '<definedName': {
 				dname = {};
-				dname.Name = utf8read(y.name);
+				dname.Name = y.name;
 				if(y.comment) dname.Comment = y.comment;
 				if(y.localSheetId) dname.Sheet = +y.localSheetId;
-				if(parsexmlbool(y.hidden||"0")) dname.Hidden = true;
 				dnstart = idx + x.length;
 			}	break;
 			case '</definedName>': {
-				dname.Ref = unescapexml(utf8read(data.slice(dnstart, idx)));
+				dname.Ref = data.slice(dnstart, idx);
 				wb.Names.push(dname);
 			} break;
 			case '<definedName/>': break;
@ -105,7 +101,7 @@ function parse_wb_xml(data, opts)/*:WorkbookFile*/ {

 			/* 18.2.4  customWorkbookViews CT_CustomWorkbookViews ? */
 			case '<customWorkbookViews>': case '</customWorkbookViews>': case '<customWorkbookViews': break;
-			/* 18.2.3  customWorkbookView CT_CustomWorkbookView + */
+			/* 18.2.3    customWorkbookView CT_CustomWorkbookView + */
 			case '<customWorkbookView': case '</customWorkbookView>': break;

 			/* 18.2.18 pivotCaches CT_PivotCaches ? */
@ -118,7 +114,7 @@ function parse_wb_xml(data, opts)/*:WorkbookFile*/ {

 			/* 18.2.23 smartTagTypes CT_SmartTagTypes ? */
 			case '<smartTagTypes': case '<smartTagTypes>': case '</smartTagTypes>': break;
-			/* 18.2.22 smartTagType CT_SmartTagType ? */
+			/* 18.2.22   smartTagType CT_SmartTagType ? */
 			case '<smartTagType': break;

 			/* 18.2.24 webPublishing CT_WebPublishing ? */
@ -134,7 +130,7 @@ function parse_wb_xml(data, opts)/*:WorkbookFile*/ {

 			/* 18.2.10 extLst CT_ExtensionList ? */
 			case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
-			/* 18.2.7  ext CT_Extension + */
+			/* 18.2.7    ext CT_Extension + */
 			case '<ext': pass=true; break; //TODO: check with versions of excel
 			case '</ext>': pass=false; break;

@ -151,21 +147,23 @@ function parse_wb_xml(data, opts)/*:WorkbookFile*/ {
 		}
 		return x;
 	});
-	if(XMLNS_main.indexOf(wb.xmlns) === -1) throw new Error("Unknown Namespace: " + wb.xmlns);
+	if(XMLNS.main.indexOf(wb.xmlns) === -1) throw new Error("Unknown Namespace: " + wb.xmlns);

 	parse_wb_defaults(wb);

 	return wb;
 }

+var WB_XML_ROOT = writextag('workbook', null, {
+	'xmlns': XMLNS.main[0],
+	//'xmlns:mx': XMLNS.mx,
+	//'xmlns:s': XMLNS.main[0],
+	'xmlns:r': XMLNS.r
+});
+
 function write_wb_xml(wb/*:Workbook*//*::, opts:?WriteOpts*/)/*:string*/ {
 	var o = [XML_HEADER];
-	o[o.length] = writextag('workbook', null, {
-		'xmlns': XMLNS_main[0],
-		//'xmlns:mx': XMLNS.mx,
-		//'xmlns:s': XMLNS_main[0],
-		'xmlns:r': XMLNS.r
-	});
+	o[o.length] = WB_XML_ROOT;

 	var write_names = (wb.Workbook && (wb.Workbook.Names||[]).length > 0);

@ -186,24 +184,11 @@ function write_wb_xml(wb/*:Workbook*//*::, opts:?WriteOpts*/)/*:string*/ {
 	o[o.length] = (writextag('workbookPr', null, workbookPr));

 	/* workbookProtection */
-
-	var sheets = wb.Workbook && wb.Workbook.Sheets || [];
-	var i = 0;
-
-	/* bookViews only written if first worksheet is hidden */
-	if(sheets && sheets[0] && !!sheets[0].Hidden) {
-		o[o.length] = "<bookViews>";
-		for(i = 0; i != wb.SheetNames.length; ++i) {
-			if(!sheets[i]) break;
-			if(!sheets[i].Hidden) break;
-		}
-		if(i == wb.SheetNames.length) i = 0;
-		o[o.length] = '<workbookView firstSheet="' + i + '" activeTab="' + i + '"/>';
-		o[o.length] = "</bookViews>";
-	}
+	/* bookViews */

 	o[o.length] = "<sheets>";
-	for(i = 0; i != wb.SheetNames.length; ++i) {
+	var sheets = wb.Workbook && wb.Workbook.Sheets || [];
+	for(var i = 0; i != wb.SheetNames.length; ++i) {
 		var sht = ({name:escapexml(wb.SheetNames[i].slice(0,31))}/*:any*/);
 		sht.sheetId = ""+(i+1);
 		sht["r:id"] = "rId"+(i+1);
@ -224,9 +209,8 @@ function write_wb_xml(wb/*:Workbook*//*::, opts:?WriteOpts*/)/*:string*/ {
 			var d/*:any*/ = {name:n.Name};
 			if(n.Comment) d.comment = n.Comment;
 			if(n.Sheet != null) d.localSheetId = ""+n.Sheet;
-			if(n.Hidden) d.hidden = "1";
 			if(!n.Ref) return;
-			o[o.length] = writextag('definedName', escapexml(n.Ref), d);
+			o[o.length] = writextag('definedName', String(n.Ref), d);
 		});
 		o[o.length] = "</definedNames>";
 	}
--- a/bits/73_wbbin.js
+++ b/bits/73_wbbin.js
@ -45,7 +45,6 @@ function write_BrtWbProp(data/*:?WBProps*/, o) {
 	var flags = 0;
 	if(data) {
 		/* TODO: mirror parse_BrtWbProp fields */
-		if(data.date1904) flags |= 0x01;
 		if(data.filterPrivacy) flags |= 0x08;
 	}
 	o.write_shift(4, flags);
@ -65,13 +64,12 @@ function parse_BrtFRTArchID$(data, length) {
 /* [MS-XLSB] 2.4.687 BrtName */
 function parse_BrtName(data, length, opts) {
 	var end = data.l + length;
-	var flags = data.read_shift(4);
+	data.l += 4; //var flags = data.read_shift(4);
 	data.l += 1; //var chKey = data.read_shift(1);
 	var itab = data.read_shift(4);
 	var name = parse_XLNameWideString(data);
 	var formula = parse_XLSBNameParsedFormula(data, 0, opts);
 	var comment = parse_XLNullableWideString(data);
-	if(flags & 0x20) name = "_xlnm." + name;
 	//if(0 /* fProc */) {
 		// unusedstring1: XLNullableWideString
 		// description: XLNullableWideString
@ -79,45 +77,15 @@ function parse_BrtName(data, length, opts) {
 		// unusedstring2: XLNullableWideString
 	//}
 	data.l = end;
-	var out = ({Name:name, Ptg:formula, Flags: flags}/*:any*/);
+	var out = ({Name:name, Ptg:formula}/*:any*/);
 	if(itab < 0xFFFFFFF) out.Sheet = itab;
 	if(comment) out.Comment = comment;
 	return out;
 }
-function write_BrtName(name, wb) {
-	var o = new_buf(9);
-	var flags = 0;
-	var dname = name.Name;
-	if(XLSLblBuiltIn.indexOf(dname) > -1) { flags |= 0x20; dname = dname.slice(6); }
-	o.write_shift(4, flags); // flags
-	o.write_shift(1, 0); // chKey
-	o.write_shift(4, name.Sheet == null ? 0xFFFFFFFF : name.Sheet);
-
-	var arr = [
-		o,
-		write_XLWideString(dname),
-		write_XLSBNameParsedFormula(name.Ref, wb)
-	];
-	if(name.Comment) arr.push(write_XLNullableWideString(name.Comment));
-	else {
-		var x = new_buf(4);
-		x.write_shift(4, 0xFFFFFFFF);
-		arr.push(x);
-	}
-
-	// if macro (flags & 0x0F):
-	// write_shift(4, 0xFFFFFFFF);
-	// write_XLNullableWideString(description)
-	// write_XLNullableWideString(helpTopic)
-	// write_shift(4, 0xFFFFFFFF);
-
-	return bconcat(arr);
-}

 /* [MS-XLSB] 2.1.7.61 Workbook */
 function parse_wb_bin(data, opts)/*:WorkbookFile*/ {
 	var wb = { AppVersion:{}, WBProps:{}, WBView:[], Sheets:[], CalcPr:{}, xmlns: "" };
-	var state/*:Array<string>*/ = [];
 	var pass = false;

 	if(!opts) opts = {};
@ -128,9 +96,7 @@ function parse_wb_bin(data, opts)/*:WorkbookFile*/ {
 	supbooks.SheetNames = [];
 	supbooks.XTI = [];

-	XLSBRecordEnum[0x0010] = { n:"BrtFRTArchID$", f:parse_BrtFRTArchID$ };
-
-	recordhopper(data, function hopper_wb(val, R, RT) {
+	recordhopper(data, function hopper_wb(val, R_n, RT) {
 		switch(RT) {
 			case 0x009C: /* 'BrtBundleSh' */
 				supbooks.SheetNames.push(val.name);
@ -164,18 +130,13 @@ function parse_wb_bin(data, opts)/*:WorkbookFile*/ {
 			case 0x0169: /* 'BrtPlaceholderName' */
 				break;

-			case 0x0817: /* 'BrtAbsPath15' */
-			case 0x009E: /* 'BrtBookView' */
-			case 0x008F: /* 'BrtBeginBundleShs' */
-			case 0x0298: /* 'BrtBeginFnGroup' */
-			case 0x0161: /* 'BrtBeginExternals' */
-				break;
-
 			/* case 'BrtModelTimeGroupingCalcCol' */
 			case 0x0C00: /* 'BrtUid' */
 			case 0x0C01: /* 'BrtRevisionPtr' */
+			case 0x0817: /* 'BrtAbsPath15' */
 			case 0x0216: /* 'BrtBookProtection' */
 			case 0x02A5: /* 'BrtBookProtectionIso' */
+			case 0x009E: /* 'BrtBookView' */
 			case 0x009D: /* 'BrtCalcProp' */
 			case 0x0262: /* 'BrtCrashRecErr' */
 			case 0x0802: /* 'BrtDecoupledPivotCacheID' */
@ -200,19 +161,18 @@ function parse_wb_bin(data, opts)/*:WorkbookFile*/ {
 				break;

 			case 0x0023: /* 'BrtFRTBegin' */
-				state.push(RT); pass = true; break;
+				pass = true; break;
 			case 0x0024: /* 'BrtFRTEnd' */
-				state.pop(); pass = false; break;
-			case 0x0025: /* 'BrtACBegin' */
-				state.push(RT); pass = true; break;
-			case 0x0026: /* 'BrtACEnd' */
-				state.pop(); pass = false; break;
+				pass = false; break;
+			case 0x0025: /* 'BrtACBegin' */ break;
+			case 0x0026: /* 'BrtACEnd' */ break;

 			case 0x0010: /* 'BrtFRTArchID$' */ break;

 			default:
-				if(R.T){/* empty */}
-				else if(!pass || (opts.WTF && state[state.length-1] != 0x0025 /* BrtACBegin */ && state[state.length-1] != 0x0023 /* BrtFRTBegin */)) throw new Error("Unexpected record 0x" + RT.toString(16));
+				if((R_n||"").indexOf("Begin") > 0){/* empty */}
+				else if((R_n||"").indexOf("End") > 0){/* empty */}
+				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
 		}
 	}, opts);

@ -226,13 +186,13 @@ function parse_wb_bin(data, opts)/*:WorkbookFile*/ {
 }

 function write_BUNDLESHS(ba, wb/*::, opts*/) {
-	write_record(ba, 0x008F /* BrtBeginBundleShs */);
+	write_record(ba, "BrtBeginBundleShs");
 	for(var idx = 0; idx != wb.SheetNames.length; ++idx) {
 		var viz = wb.Workbook && wb.Workbook.Sheets && wb.Workbook.Sheets[idx] && wb.Workbook.Sheets[idx].Hidden || 0;
 		var d = { Hidden: viz, iTabID: idx+1, strRelID: 'rId' + (idx+1), name: wb.SheetNames[idx] };
-		write_record(ba, 0x009C /* BrtBundleSh */, write_BrtBundleSh(d));
+		write_record(ba, "BrtBundleSh", write_BrtBundleSh(d));
 	}
-	write_record(ba, 0x0090 /* BrtEndBundleShs */);
+	write_record(ba, "BrtEndBundleShs");
 }

 /* [MS-XLSB] 2.4.649 BrtFileVersion */
@ -243,6 +203,7 @@ function write_BrtFileVersion(data, o) {
 	write_XLWideString(XLSX.version, o);
 	write_XLWideString(XLSX.version, o);
 	write_XLWideString("7262", o);
+	o.length = o.l;
 	return o.length > o.l ? o.slice(0, o.l) : o;
 }

@ -271,38 +232,10 @@ function write_BOOKVIEWS(ba, wb/*::, opts*/) {
 		else if(sheets[i].Hidden == 1 && hidden == -1) hidden = i;
 	}
 	if(hidden > vistab) return;
-	write_record(ba, 0x0087 /* BrtBeginBookViews */);
-	write_record(ba, 0x009E /* BrtBookView */, write_BrtBookView(vistab));
+	write_record(ba, "BrtBeginBookViews");
+	write_record(ba, "BrtBookView", write_BrtBookView(vistab));
 	/* 1*(BrtBookView *FRT) */
-	write_record(ba, 0x0088 /* BrtEndBookViews */);
-}
-
-function write_BRTNAMES(ba, wb) {
-	if(!wb.Workbook || !wb.Workbook.Names) return;
-	wb.Workbook.Names.forEach(function(name) { try {
-		if(name.Flags & 0x0e) return; // TODO: macro name write
-		write_record(ba, 0x0027 /* BrtName */, write_BrtName(name, wb));
-	} catch(e) {
-		console.error("Could not serialize defined name " + JSON.stringify(name));
-	} });
-}
-
-function write_SELF_EXTERNS_xlsb(wb) {
-	var L = wb.SheetNames.length;
-	var o = new_buf(12 * L + 28);
-	o.write_shift(4, L + 2);
-	o.write_shift(4, 0); o.write_shift(4, -2); o.write_shift(4, -2); // workbook-level reference
-	o.write_shift(4, 0); o.write_shift(4, -1); o.write_shift(4, -1); // #REF!...
-	for(var i = 0; i < L; ++i) {
-		o.write_shift(4, 0); o.write_shift(4, i); o.write_shift(4, i);
-	}
-	return o;
-}
-function write_EXTERNALS_xlsb(ba, wb) {
-	write_record(ba, 0x0161 /* BrtBeginExternals */);
-	write_record(ba, 0x0165 /* BrtSupSelf */);
-	write_record(ba, 0x016A /* BrtExternSheet */, write_SELF_EXTERNS_xlsb(wb, 0));
-	write_record(ba, 0x0162 /* BrtEndExternals */);
+	write_record(ba, "BrtEndBookViews");
 }

 /* [MS-XLSB] 2.4.305 BrtCalcProp */
@ -328,29 +261,29 @@ function write_EXTERNALS_xlsb(ba, wb) {
 /* [MS-XLSB] 2.1.7.61 Workbook */
 function write_wb_bin(wb, opts) {
 	var ba = buf_array();
-	write_record(ba, 0x0083 /* BrtBeginBook */);
-	write_record(ba, 0x0080 /* BrtFileVersion */, write_BrtFileVersion());
+	write_record(ba, "BrtBeginBook");
+	write_record(ba, "BrtFileVersion", write_BrtFileVersion());
 	/* [[BrtFileSharingIso] BrtFileSharing] */
-	write_record(ba, 0x0099 /* BrtWbProp */, write_BrtWbProp(wb.Workbook && wb.Workbook.WBProps || null));
+	write_record(ba, "BrtWbProp", write_BrtWbProp(wb.Workbook && wb.Workbook.WBProps || null));
 	/* [ACABSPATH] */
 	/* [[BrtBookProtectionIso] BrtBookProtection] */
 	write_BOOKVIEWS(ba, wb, opts);
 	write_BUNDLESHS(ba, wb, opts);
 	/* [FNGROUP] */
-	write_EXTERNALS_xlsb(ba, wb);
-	if((wb.Workbook||{}).Names) write_BRTNAMES(ba, wb);
-	/* write_record(ba, 0x009D BrtCalcProp, write_BrtCalcProp()); */
+	/* [EXTERNALS] */
+	/* *BrtName */
+	/* write_record(ba, "BrtCalcProp", write_BrtCalcProp()); */
 	/* [BrtOleSize] */
 	/* *(BrtUserBookView *FRT) */
 	/* [PIVOTCACHEIDS] */
 	/* [BrtWbFactoid] */
 	/* [SMARTTAGTYPES] */
 	/* [BrtWebOpt] */
-	/* write_record(ba, 0x009B BrtFileRecover, write_BrtFileRecover()); */
+	/* write_record(ba, "BrtFileRecover", write_BrtFileRecover()); */
 	/* [WEBPUBITEMS] */
 	/* [CRERRS] */
 	/* FRTWORKBOOK */
-	write_record(ba, 0x0084 /* BrtEndBook */);
+	write_record(ba, "BrtEndBook");

 	return ba.end();
 }
--- a/bits/74_xmlbin.js
+++ b/bits/74_xmlbin.js
@ -28,6 +28,10 @@ function parse_sty(data, name/*:string*/, themes, opts) {
 	return parse_sty_xml((data/*:any*/), themes, opts);
 }

+function parse_theme(data/*:string*/, name/*:string*/, opts) {
+	return parse_theme_xml(data, opts);
+}
+
 function parse_sst(data, name/*:string*/, opts)/*:SST*/ {
 	if(name.slice(-4)===".bin") return parse_sst_bin((data/*:any*/), opts);
 	return parse_sst_xml((data/*:any*/), opts);
@ -43,12 +47,37 @@ function parse_cc(data, name/*:string*/, opts) {
 	return parse_cc_xml((data/*:any*/), name, opts);
 }

-function parse_xlink(data, rel, name/*:string*/, opts) {
-	if(name.slice(-4)===".bin") return parse_xlink_bin((data/*:any*/), rel, name, opts);
-	return parse_xlink_xml((data/*:any*/), rel, name, opts);
+function parse_xlink(data, name/*:string*/, opts) {
+	if(name.slice(-4)===".bin") return parse_xlink_bin((data/*:any*/), name, opts);
+	return parse_xlink_xml((data/*:any*/), name, opts);
 }

-function parse_xlmeta(data, name/*:string*/, opts) {
-	if(name.slice(-4)===".bin") return parse_xlmeta_bin((data/*:any*/), name, opts);
-	return parse_xlmeta_xml((data/*:any*/), name, opts);
+function write_wb(wb, name/*:string*/, opts) {
+	return (name.slice(-4)===".bin" ? write_wb_bin : write_wb_xml)(wb, opts);
 }
+
+function write_ws(data/*:number*/, name/*:string*/, opts, wb/*:Workbook*/, rels) {
+	return (name.slice(-4)===".bin" ? write_ws_bin : write_ws_xml)(data, opts, wb, rels);
+}
+
+// eslint-disable-next-line no-unused-vars
+function write_cs(data/*:number*/, name/*:string*/, opts, wb/*:Workbook*/, rels) {
+	return (name.slice(-4)===".bin" ? write_cs_bin : write_cs_xml)(data, opts, wb, rels);
+}
+
+function write_sty(data, name/*:string*/, opts) {
+	return (name.slice(-4)===".bin" ? write_sty_bin : write_sty_xml)(data, opts);
+}
+
+function write_sst(data/*:SST*/, name/*:string*/, opts) {
+	return (name.slice(-4)===".bin" ? write_sst_bin : write_sst_xml)(data, opts);
+}
+
+function write_cmnt(data/*:Array<any>*/, name/*:string*/, opts) {
+	return (name.slice(-4)===".bin" ? write_comments_bin : write_comments_xml)(data, opts);
+}
+/*
+function write_cc(data, name:string, opts) {
+	return (name.slice(-4)===".bin" ? write_cc_bin : write_cc_xml)(data, opts);
+}
+*/
--- a/bits/75_xlml.js
+++ b/bits/75_xlml.js
--- a/bits/76_xls.js
+++ b/bits/76_xls.js
@ -28,46 +28,39 @@ function parse_compobj(obj/*:CFBEntry*/) {

 /*
 	Continue logic for:
-	- 2.4.58 Continue          0x003c
-	- 2.4.59 ContinueBigName   0x043c
-	- 2.4.60 ContinueFrt       0x0812
-	- 2.4.61 ContinueFrt11     0x0875
-	- 2.4.62 ContinueFrt12     0x087f
+	- 2.4.58 Continue
+	- 2.4.59 ContinueBigName
+	- 2.4.60 ContinueFrt
+	- 2.4.61 ContinueFrt11
+	- 2.4.62 ContinueFrt12
 */
-var CONTINUE_RT = [ 0x003c, 0x043c, 0x0812, 0x0875, 0x087f ];
-function slurp(RecordType, R, blob, length/*:number*/, opts)/*:any*/ {
+function slurp(R, blob, length/*:number*/, opts) {
 	var l = length;
 	var bufs = [];
 	var d = blob.slice(blob.l,blob.l+l);
-	if(opts && opts.enc && opts.enc.insitu && d.length > 0) switch(RecordType) {
-	case 0x0009: case 0x0209: case 0x0409: case 0x0809/* BOF */: case 0x002F /* FilePass */: case 0x0195 /* FileLock */: case 0x00E1 /* InterfaceHdr */: case 0x0196 /* RRDInfo */: case 0x0138 /* RRDHead */: case 0x0194 /* UsrExcl */: case 0x000a /* EOF */:
-		break;
-	case 0x0085 /* BoundSheet8 */:
-		break;
+	if(opts && opts.enc && opts.enc.insitu) switch(R.n) {
+	case 'BOF': case 'FilePass': case 'FileLock': case 'InterfaceHdr': case 'RRDInfo': case 'RRDHead': case 'UsrExcl': break;
 	default:
+		if(d.length === 0) break;
 		opts.enc.insitu(d);
 	}
 	bufs.push(d);
 	blob.l += l;
-	var nextrt = __readUInt16LE(blob,blob.l), next = XLSRecordEnum[nextrt];
+	var next = (XLSRecordEnum[__readUInt16LE(blob,blob.l)]);
 	var start = 0;
-	while(next != null && CONTINUE_RT.indexOf(nextrt) > -1) {
+	while(next != null && next.n.slice(0,8) === 'Continue') {
 		l = __readUInt16LE(blob,blob.l+2);
 		start = blob.l + 4;
-		if(nextrt == 0x0812 /* ContinueFrt */) start += 4;
-		else if(nextrt == 0x0875 || nextrt == 0x087f) {
-			start += 12;
-		}
-		d = blob.slice(start,blob.l+4+l);
-		bufs.push(d);
+		if(next.n == 'ContinueFrt') start += 4;
+		else if(next.n.slice(0,11) == 'ContinueFrt') start += 12;
+		bufs.push(blob.slice(start,blob.l+4+l));
 		blob.l += 4+l;
-		next = (XLSRecordEnum[nextrt = __readUInt16LE(blob, blob.l)]);
+		next = (XLSRecordEnum[__readUInt16LE(blob, blob.l)]);
 	}
 	var b = (bconcat(bufs)/*:any*/);
 	prep_blob(b, 0);
 	var ll = 0; b.lens = [];
 	for(var j = 0; j < bufs.length; ++j) { b.lens.push(ll); ll += bufs[j].length; }
-	if(b.length < length) throw "XLS Record 0x" + RecordType.toString(16) + " Truncated: " + b.length + " < " + length;
 	return R.f(b, b.length, opts);
 }

@ -77,21 +70,21 @@ function safe_format_xf(p/*:any*/, opts/*:ParseOpts*/, date1904/*:?boolean*/) {
 	var fmtid = 0;
 	try {
 		fmtid = p.z || p.XF.numFmtId || 0;
-		if(opts.cellNF) p.z = table_fmt[fmtid];
+		if(opts.cellNF) p.z = SSF._table[fmtid];
 	} catch(e) { if(opts.WTF) throw e; }
 	if(!opts || opts.cellText !== false) try {
 		if(p.t === 'e') { p.w = p.w || BErr[p.v]; }
 		else if(fmtid === 0 || fmtid == "General") {
 			if(p.t === 'n') {
-				if((p.v|0) === p.v) p.w = p.v.toString(10);
-				else p.w = SSF_general_num(p.v);
+				if((p.v|0) === p.v) p.w = SSF._general_int(p.v);
+				else p.w = SSF._general_num(p.v);
 			}
-			else p.w = SSF_general(p.v);
+			else p.w = SSF._general(p.v);
 		}
-		else p.w = SSF_format(fmtid,p.v, {date1904:!!date1904, dateNF: opts && opts.dateNF});
+		else p.w = SSF.format(fmtid,p.v, {date1904:!!date1904});
 	} catch(e) { if(opts.WTF) throw e; }
-	if(opts.cellDates && fmtid && p.t == 'n' && fmt_is_date(table_fmt[fmtid] || String(fmtid))) {
-		var _d = SSF_parse_date_code(p.v); if(_d) { p.t = 'd'; p.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
+	if(opts.cellDates && fmtid && p.t == 'n' && SSF.is_date(SSF._table[fmtid] || String(fmtid))) {
+		var _d = SSF.parse_date_code(p.v); if(_d) { p.t = 'd'; p.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
 	}
 }

@ -104,22 +97,23 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 	var wb = ({opts:{}}/*:any*/);
 	var Sheets = {};
 	if(DENSE != null && options.dense == null) options.dense = DENSE;
-	var out/*:Worksheet*/ = ({}/*:any*/); if(options.dense) out["!data"] = [];
+	var out/*:Worksheet*/ = ((options.dense ? [] : {})/*:any*/);
 	var Directory = {};
 	var range/*:Range*/ = ({}/*:any*/);
 	var last_formula = null;
 	var sst/*:SST*/ = ([]/*:any*/);
 	var cur_sheet = "";
 	var Preamble = {};
-	var lastcell, last_cell = "", cc/*:Cell*/, cmnt, rngC, rngR;
+	var lastcell, last_cell = "", cc, cmnt, rngC, rngR;
 	var sharedf = {};
 	var arrayf/*:Array<[Range, string]>*/ = [];
 	var temp_val/*:Cell*/;
 	var country;
+	var cell_valid = true;
 	var XFs = []; /* XF records */
-	var palette/*:Array<[number, number, number]>*/ = [];
+	var palette = [];
 	var Workbook/*:WBWBProps*/ = ({ Sheets:[], WBProps:{date1904:false}, Views:[{}] }/*:any*/), wsprops = {};
-	var get_rgb = function getrgb(icv/*:number*/)/*:[number, number, number]*/ {
+	var get_rgb = function getrgb(icv) {
 		if(icv < 8) return XLSIcv[icv];
 		if(icv < 64) return palette[icv-8] || XLSIcv[icv];
 		return XLSIcv[icv];
@ -135,16 +129,20 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 	};
 	var addcell = function addcell(cell/*:any*/, line/*:any*/, options/*:any*/) {
 		if(file_depth > 1) return;
-		if(options.sheetRows && cell.r >= options.sheetRows) return;
+		if(options.sheetRows && cell.r >= options.sheetRows) cell_valid = false;
+		if(!cell_valid) return;
 		if(options.cellStyles && line.XF && line.XF.data) process_cell_style(cell, line, options);
 		delete line.ixfe; delete line.XF;
 		lastcell = cell;
 		last_cell = encode_cell(cell);
-		if(!range || !range.s || !range.e) range = {s:{r:0,c:0},e:{r:0,c:0}};
-		if(cell.r < range.s.r) range.s.r = cell.r;
-		if(cell.c < range.s.c) range.s.c = cell.c;
-		if(cell.r + 1 > range.e.r) range.e.r = cell.r + 1;
-		if(cell.c + 1 > range.e.c) range.e.c = cell.c + 1;
+		if(range.s) {
+			if(cell.r < range.s.r) range.s.r = cell.r;
+			if(cell.c < range.s.c) range.s.c = cell.c;
+		}
+		if(range.e) {
+			if(cell.r + 1 > range.e.r) range.e.r = cell.r + 1;
+			if(cell.c + 1 > range.e.c) range.e.c = cell.c + 1;
+		}
 		if(options.cellFormula && line.f) {
 			for(var afi = 0; afi < arrayf.length; ++afi) {
 				if(arrayf[afi][0].s.c > cell.c || arrayf[afi][0].s.r > cell.r) continue;
@ -157,8 +155,8 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 		}
 		{
 			if(options.dense) {
-				if(!out["!data"][cell.r]) out["!data"][cell.r] = [];
-				out["!data"][cell.r][cell.c] = line;
+				if(!out[cell.r]) out[cell.r] = [];
+				out[cell.r][cell.c] = line;
 			} else out[last_cell] = line;
 		}
 	};
@ -181,6 +179,8 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 	var merges/*:Array<Range>*/ = [];
 	var objects = [];
 	var colinfo/*:Array<ColInfo>*/ = [], rowinfo/*:Array<RowInfo>*/ = [];
+	// eslint-disable-next-line no-unused-vars
+	var defwidth = 0, defheight = 0; // twips / MDW respectively
 	var seencol = false;
 	var supbooks = ([]/*:any*/); // 1-indexed, will hold extern names
 	supbooks.SheetNames = opts.snames;
@ -188,7 +188,7 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 	supbooks.arrayf = opts.arrayf;
 	supbooks.names = [];
 	supbooks.XTI = [];
-	var last_RT = 0;
+	var last_Rn = '';
 	var file_depth = 0; /* TODO: make a real stack */
 	var BIFF2Fmt = 0, BIFF2FmtTable/*:Array<string>*/ = [];
 	var FilterDatabases = []; /* TODO: sort out supbooks and process elsewhere */
@ -201,80 +201,88 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 	while(blob.l < blob.length - 1) {
 		var s = blob.l;
 		var RecordType = blob.read_shift(2);
-		if(RecordType === 0 && last_RT === 0x000a /* EOF */) break;
+		if(RecordType === 0 && last_Rn === 'EOF') break;
 		var length = (blob.l === blob.length ? 0 : blob.read_shift(2));
 		var R = XLSRecordEnum[RecordType];
-		if(file_depth == 0 && [0x0009, 0x0209, 0x0409, 0x0809].indexOf(RecordType) == -1 /* BOF */) break;
 		//console.log(RecordType.toString(16), RecordType, R, blob.l, length, blob.length);
 		//if(!R) console.log(blob.slice(blob.l, blob.l + length));
 		if(R && R.f) {
 			if(options.bookSheets) {
-				if(last_RT === 0x0085 /* BoundSheet8 */ && RecordType !== 0x0085 /* R.n !== 'BoundSheet8' */) break;
+				if(last_Rn === 'BoundSheet8' && R.n !== 'BoundSheet8') break;
 			}
-			last_RT = RecordType;
+			last_Rn = R.n;
 			if(R.r === 2 || R.r == 12) {
 				var rt = blob.read_shift(2); length -= 2;
 				if(!opts.enc && rt !== RecordType && (((rt&0xFF)<<8)|(rt>>8)) !== RecordType) throw new Error("rt mismatch: " + rt + "!=" + RecordType);
-				if(R.r == 12){
-					blob.l += 10; length -= 10;
-				} // skip FRT
+				if(R.r == 12){ blob.l += 10; length -= 10; } // skip FRT
 			}
 			//console.error(R,blob.l,length,blob.length);
-			var val/*:any*/ = ({}/*:any*/);
-			if(RecordType === 0x000a /* EOF */) val = /*::(*/R.f(blob, length, opts)/*:: :any)*/;
-			else val = /*::(*/slurp(RecordType, R, blob, length, opts)/*:: :any)*/;
-			/*:: val = (val:any); */
-			if(file_depth == 0 && [0x0009, 0x0209, 0x0409, 0x0809].indexOf(last_RT) === -1 /* BOF */) continue;
-			switch(RecordType) {
-				case 0x0022 /* Date1904 */:
+			var val;
+			if(R.n === 'EOF') val = R.f(blob, length, opts);
+			else val = slurp(R, blob, length, opts);
+			var Rn = R.n;
+			if(file_depth == 0 && Rn != 'BOF') continue;
+			/* nested switch statements to workaround V8 128 limit */
+			switch(Rn) {
+				/* Workbook Options */
+				case 'Date1904':
 					/*:: if(!Workbook.WBProps) Workbook.WBProps = {}; */
 					wb.opts.Date1904 = Workbook.WBProps.date1904 = val; break;
-				case 0x0086 /* WriteProtect */: wb.opts.WriteProtect = true; break;
-				case 0x002f /* FilePass */:
+				case 'WriteProtect': wb.opts.WriteProtect = true; break;
+				case 'FilePass':
 					if(!opts.enc) blob.l = 0;
 					opts.enc = val;
 					if(!options.password) throw new Error("File is password-protected");
 					if(val.valid == null) throw new Error("Encryption scheme unsupported");
 					if(!val.valid) throw new Error("Password is incorrect");
 					break;
-				case 0x005c /* WriteAccess */: opts.lastuser = val; break;
-				case 0x0042 /* CodePage */:
-					var cpval = Number(val);
+				case 'WriteAccess': opts.lastuser = val; break;
+				case 'FileSharing': break; //TODO
+				case 'CodePage':
 					/* overrides based on test cases */
-					switch(cpval) {
-						case 0x5212: cpval =  1200; break;
-						case 0x8000: cpval = 10000; break;
-						case 0x8001: cpval =  1252; break;
+					switch(val) {
+						case 0x5212: val =  1200; break;
+						case 0x8000: val = 10000; break;
+						case 0x8001: val =  1252; break;
 					}
-					set_cp(opts.codepage = cpval);
+					set_cp(opts.codepage = val);
 					seen_codepage = true;
 					break;
-				case 0x013d /* RRTabId */: opts.rrtabid = val; break;
-				case 0x0019 /* WinProtect */: opts.winlocked = val; break;
-				case 0x01b7 /* RefreshAll */: wb.opts["RefreshAll"] = val; break;
-				case 0x000c /* CalcCount */: wb.opts["CalcCount"] = val; break;
-				case 0x0010 /* CalcDelta */: wb.opts["CalcDelta"] = val; break;
-				case 0x0011 /* CalcIter */: wb.opts["CalcIter"] = val; break;
-				case 0x000d /* CalcMode */: wb.opts["CalcMode"] = val; break;
-				case 0x000e /* CalcPrecision */: wb.opts["CalcPrecision"] = val; break;
-				case 0x005f /* CalcSaveRecalc */: wb.opts["CalcSaveRecalc"] = val; break;
-				case 0x000f /* CalcRefMode */: opts.CalcRefMode = val; break; // TODO: implement R1C1
-				case 0x08a3 /* ForceFullCalculation */: wb.opts.FullCalc = val; break;
-				case 0x0081 /* WsBool */:
+				case 'RRTabId': opts.rrtabid = val; break;
+				case 'WinProtect': opts.winlocked = val; break;
+				case 'Template': break; // TODO
+				case 'BookBool': break; // TODO
+				case 'UsesELFs': break;
+				case 'MTRSettings': break;
+				case 'RefreshAll':
+				case 'CalcCount':
+				case 'CalcDelta':
+				case 'CalcIter':
+				case 'CalcMode':
+				case 'CalcPrecision':
+				case 'CalcSaveRecalc':
+					wb.opts[Rn] = val; break;
+				case 'CalcRefMode': opts.CalcRefMode = val; break; // TODO: implement R1C1
+				case 'Uncalced': break;
+				case 'ForceFullCalculation': wb.opts.FullCalc = val; break;
+				case 'WsBool':
 					if(val.fDialog) out["!type"] = "dialog";
-					if(!val.fBelow) (out["!outline"] || (out["!outline"] = {})).above = true;
-					if(!val.fRight) (out["!outline"] || (out["!outline"] = {})).left = true;
 					break; // TODO
-				case 0x00e0 /* XF */:
-					XFs.push(val); break;
-				case 0x01ae /* SupBook */:
+				case 'XF': XFs.push(val); break;
+				case 'ExtSST': break; // TODO
+				case 'BookExt': break; // TODO
+				case 'RichTextStream': break;
+				case 'BkHim': break;
+
+				case 'SupBook':
 					supbooks.push([val]);
 					supbooks[supbooks.length-1].XTI = [];
 					break;
-				case 0x0023: case 0x0223 /* ExternName */:
+				case 'ExternName':
 					supbooks[supbooks.length-1].push(val);
 					break;
-				case 0x0018: case 0x0218 /* Lbl */:
+				case 'Index': break; // TODO
+				case 'Lbl':
 					last_lbl = ({
 						Name: val.Name,
 						Ref: stringify_formula(val.rgce,range,null,supbooks,opts)
@ -287,22 +295,25 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 						if(val.rgce && val.rgce[0] && val.rgce[0][0] && val.rgce[0][0][0] == 'PtgArea3d')
 							FilterDatabases[val.itab - 1] = { ref: encode_range(val.rgce[0][0][1][2]) };
 					break;
-				case 0x0016 /* ExternCount */: opts.ExternCount = val; break;
-				case 0x0017 /* ExternSheet */:
+				case 'ExternCount': opts.ExternCount = val; break;
+				case 'ExternSheet':
 					if(supbooks.length == 0) { supbooks[0] = []; supbooks[0].XTI = []; }
 					supbooks[supbooks.length - 1].XTI = supbooks[supbooks.length - 1].XTI.concat(val); supbooks.XTI = supbooks.XTI.concat(val); break;
-				case 0x0894 /* NameCmt */:
+				case 'NameCmt':
 					/* TODO: search for correct name */
 					if(opts.biff < 8) break;
 					if(last_lbl != null) last_lbl.Comment = val[1];
 					break;
-				case 0x0012 /* Protect */: out["!protect"] = val; break; /* for sheet or book */
-				case 0x0013 /* Password */: if(val !== 0 && opts.WTF) console.error("Password verifier: " + val); break;
-				case 0x0085 /* BoundSheet8 */: {
+
+				case 'Protect': out["!protect"] = val; break; /* for sheet or book */
+				case 'Password': if(val !== 0 && opts.WTF) console.error("Password verifier: " + val); break;
+				case 'Prot4Rev': case 'Prot4RevPass': break; /*TODO: Revision Control*/
+
+				case 'BoundSheet8': {
 					Directory[val.pos] = val;
 					opts.snames.push(val.name);
 				} break;
-				case 0x000a /* EOF */: {
+				case 'EOF': {
 					if(--file_depth) break;
 					if(range.e) {
 						if(range.e.r > 0 && range.e.c > 0) {
@ -324,9 +335,9 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 						Workbook.Sheets.push(wsprops);
 					}
 					if(cur_sheet === "") Preamble = out; else Sheets[cur_sheet] = out;
-					out = ({}/*:any*/); if(options.dense) out["!data"] = [];
+					out = ((options.dense ? [] : {})/*:any*/);
 				} break;
-				case 0x0009: case 0x0209: case 0x0409: case 0x0809 /* BOF */: {
+				case 'BOF': {
 					if(opts.biff === 8) opts.biff = {
 						/*::[*/0x0009/*::]*/:2,
 						/*::[*/0x0209/*::]*/:3,
@ -340,15 +351,12 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 						/*::[*/0x0002/*::]*/:2,
 						/*::[*/0x0007/*::]*/:2
 					}[val.BIFFVer] || 8;
-					opts.biffguess = val.BIFFVer == 0;
-					if(val.BIFFVer == 0 && val.dt == 0x1000) { opts.biff = 5; seen_codepage = true; set_cp(opts.codepage = 28591); }
-					if(opts.biff == 8 && val.BIFFVer == 0 && val.dt == 16) opts.biff = 2;
 					if(file_depth++) break;
-					out = ({}/*:any*/); if(options.dense) out["!data"] = [];
+					cell_valid = true;
+					out = ((options.dense ? [] : {})/*:any*/);

 					if(opts.biff < 8 && !seen_codepage) { seen_codepage = true; set_cp(opts.codepage = options.codepage || 1252); }
-
-					if(opts.biff < 5 || val.BIFFVer == 0 && val.dt == 0x1000) {
+					if(opts.biff < 5) {
 						if(cur_sheet === "") cur_sheet = "Sheet1";
 						range = {s:{r:0,c:0},e:{r:0,c:0}};
 						/* fake BoundSheet8 */
@ -363,38 +371,40 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 					objects = [];
 					opts.arrayf = arrayf = [];
 					colinfo = []; rowinfo = [];
+					defwidth = defheight = 0;
 					seencol = false;
 					wsprops = {Hidden:(Directory[s]||{hs:0}).hs, name:cur_sheet };
 				} break;
-				case 0x0203 /* Number */: case 0x0003 /* BIFF2NUM */: case 0x0002 /* BIFF2INT */: {
-					if(out["!type"] == "chart") if(options.dense ? (out["!data"][val.r]||[])[val.c]: out[encode_col(val.c) + encode_row(val.r)]) ++val.c;
+
+				case 'Number': case 'BIFF2NUM': case 'BIFF2INT': {
+					if(out["!type"] == "chart") if(options.dense ? (out[val.r]||[])[val.c]: out[encode_cell({c:val.c, r:val.r})]) ++val.c;
 					temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe]||{}, v:val.val, t:'n'}/*:any*/);
-					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 					safe_format_xf(temp_val, options, wb.opts.Date1904);
 					addcell({c:val.c, r:val.r}, temp_val, options);
 				} break;
-				case 0x0005: case 0x0205 /* BoolErr */: {
+				case 'BoolErr': {
 					temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], v:val.val, t:val.t}/*:any*/);
-					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 					safe_format_xf(temp_val, options, wb.opts.Date1904);
 					addcell({c:val.c, r:val.r}, temp_val, options);
 				} break;
-				case 0x027e /* RK */: {
+				case 'RK': {
 					temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], v:val.rknum, t:'n'}/*:any*/);
-					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 					safe_format_xf(temp_val, options, wb.opts.Date1904);
 					addcell({c:val.c, r:val.r}, temp_val, options);
 				} break;
-				case 0x00bd /* MulRk */: {
+				case 'MulRk': {
 					for(var j = val.c; j <= val.C; ++j) {
 						var ixfe = val.rkrec[j-val.c][0];
 						temp_val= ({ixfe:ixfe, XF:XFs[ixfe], v:val.rkrec[j-val.c][1], t:'n'}/*:any*/);
-						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 						safe_format_xf(temp_val, options, wb.opts.Date1904);
 						addcell({c:j, r:val.r}, temp_val, options);
 					}
 				} break;
-				case 0x0006: case 0x0206: case 0x0406 /* Formula */: {
+				case 'Formula': {
 					if(val.val == 'String') { last_formula = val; break; }
 					temp_val = make_cell(val.val, val.cell.ixfe, val.tt);
 					temp_val.XF = XFs[temp_val.ixfe];
@ -404,15 +414,15 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 							var _fr = _f[0][0][1][0], _fc = _f[0][0][1][1];
 							var _fe = encode_cell({r:_fr, c:_fc});
 							if(sharedf[_fe]) temp_val.f = ""+stringify_formula(val.formula,range,val.cell,supbooks, opts);
-							else temp_val.F = ((options.dense ? (out["!data"][_fr]||[])[_fc]: out[_fe]) || {}).F;
+							else temp_val.F = ((options.dense ? (out[_fr]||[])[_fc]: out[_fe]) || {}).F;
 						} else temp_val.f = ""+stringify_formula(val.formula,range,val.cell,supbooks, opts);
 					}
-					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 					safe_format_xf(temp_val, options, wb.opts.Date1904);
 					addcell(val.cell, temp_val, options);
 					last_formula = val;
 				} break;
-				case 0x0007: case 0x0207 /* String */: {
+				case 'String': {
 					if(last_formula) { /* technically always true */
 						last_formula.val = val;
 						temp_val = make_cell(val, last_formula.cell.ixfe, 's');
@ -420,16 +430,16 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 						if(options.cellFormula) {
 							temp_val.f = ""+stringify_formula(last_formula.formula, range, last_formula.cell, supbooks, opts);
 						}
-						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 						safe_format_xf(temp_val, options, wb.opts.Date1904);
 						addcell(last_formula.cell, temp_val, options);
 						last_formula = null;
 					} else throw new Error("String record expects Formula");
 				} break;
-				case 0x0021: case 0x0221 /* Array */: {
+				case 'Array': {
 					arrayf.push(val);
 					var _arraystart = encode_cell(val[0].s);
-					cc = options.dense ? (out["!data"][val[0].s.r]||[])[val[0].s.c] : out[_arraystart];
+					cc = options.dense ? (out[val[0].s.r]||[])[val[0].s.c] : out[_arraystart];
 					if(options.cellFormula && cc) {
 						if(!last_formula) break; /* technically unreachable */
 						if(!_arraystart || !cc) break;
@ -437,118 +447,116 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 						cc.F = encode_range(val[0]);
 					}
 				} break;
-				case 0x04bc /* ShrFmla */: {
+				case 'ShrFmla': {
+					if(!cell_valid) break;
 					if(!options.cellFormula) break;
 					if(last_cell) {
 						/* TODO: capture range */
 						if(!last_formula) break; /* technically unreachable */
 						sharedf[encode_cell(last_formula.cell)]= val[0];
-						cc = options.dense ? (out["!data"][last_formula.cell.r]||[])[last_formula.cell.c] : out[encode_cell(last_formula.cell)];
+						cc = options.dense ? (out[last_formula.cell.r]||[])[last_formula.cell.c] : out[encode_cell(last_formula.cell)];
 						(cc||{}).f = ""+stringify_formula(val[0], range, lastcell, supbooks, opts);
 					}
 				} break;
-				case 0x00fd /* LabelSst */:
+				case 'LabelSst':
 					temp_val=make_cell(sst[val.isst].t, val.ixfe, 's');
-					if(sst[val.isst].h) temp_val.h = sst[val.isst].h;
 					temp_val.XF = XFs[temp_val.ixfe];
-					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 					safe_format_xf(temp_val, options, wb.opts.Date1904);
 					addcell({c:val.c, r:val.r}, temp_val, options);
 					break;
-				case 0x0201 /* Blank */: if(options.sheetStubs) {
+				case 'Blank': if(options.sheetStubs) {
 					temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], t:'z'}/*:any*/);
-					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 					safe_format_xf(temp_val, options, wb.opts.Date1904);
 					addcell({c:val.c, r:val.r}, temp_val, options);
 				} break;
-				case 0x00be /* MulBlank */: if(options.sheetStubs) {
+				case 'MulBlank': if(options.sheetStubs) {
 					for(var _j = val.c; _j <= val.C; ++_j) {
 						var _ixfe = val.ixfe[_j-val.c];
 						temp_val= ({ixfe:_ixfe, XF:XFs[_ixfe], t:'z'}/*:any*/);
-						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 						safe_format_xf(temp_val, options, wb.opts.Date1904);
 						addcell({c:_j, r:val.r}, temp_val, options);
 					}
 				} break;
-				case 0x00d6 /* RString */:
-				case 0x0204 /* Label */: case 0x0004 /* BIFF2STR */:
+				case 'RString':
+				case 'Label': case 'BIFF2STR':
 					temp_val=make_cell(val.val, val.ixfe, 's');
 					temp_val.XF = XFs[temp_val.ixfe];
-					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x3F];
+					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
 					safe_format_xf(temp_val, options, wb.opts.Date1904);
 					addcell({c:val.c, r:val.r}, temp_val, options);
 					break;

-				case 0x0000: case 0x0200 /* Dimensions */: {
+				case 'Dimensions': {
 					if(file_depth === 1) range = val; /* TODO: stack */
 				} break;
-				case 0x00fc /* SST */: {
+				case 'SST': {
 					sst = val;
 				} break;
-				case 0x041e /* Format */: { /* val = [id, fmt] */
+				case 'Format': { /* val = [id, fmt] */
 					if(opts.biff == 4) {
 						BIFF2FmtTable[BIFF2Fmt++] = val[1];
-						for(var b4idx = 0; b4idx < BIFF2Fmt + 163; ++b4idx) if(table_fmt[b4idx] == val[1]) break;
-						if(b4idx >= 163) SSF__load(val[1], BIFF2Fmt + 163);
+						for(var b4idx = 0; b4idx < BIFF2Fmt + 163; ++b4idx) if(SSF._table[b4idx] == val[1]) break;
+						if(b4idx >= 163) SSF.load(val[1], BIFF2Fmt + 163);
 					}
-					else SSF__load(val[1], val[0]);
+					else SSF.load(val[1], val[0]);
 				} break;
-				case 0x001e /* BIFF2FORMAT */: {
+				case 'BIFF2FORMAT': {
 					BIFF2FmtTable[BIFF2Fmt++] = val;
-					for(var b2idx = 0; b2idx < BIFF2Fmt + 163; ++b2idx) if(table_fmt[b2idx] == val) break;
-					if(b2idx >= 163) SSF__load(val, BIFF2Fmt + 163);
+					for(var b2idx = 0; b2idx < BIFF2Fmt + 163; ++b2idx) if(SSF._table[b2idx] == val) break;
+					if(b2idx >= 163) SSF.load(val, BIFF2Fmt + 163);
 				} break;

-				case 0x00e5 /* MergeCells */: merges = merges.concat(val); break;
+				case 'MergeCells': merges = merges.concat(val); break;

-				case 0x005d /* Obj */: objects[val.cmo[0]] = opts.lastobj = val; break;
-				case 0x01b6 /* TxO */: opts.lastobj.TxO = val; break;
-				case 0x007f /* ImData */: opts.lastobj.ImData = val; break;
+				case 'Obj': objects[val.cmo[0]] = opts.lastobj = val; break;
+				case 'TxO': opts.lastobj.TxO = val; break;
+				case 'ImData': opts.lastobj.ImData = val; break;

-				case 0x01b8 /* HLink */: {
+				case 'HLink': {
 					for(rngR = val[0].s.r; rngR <= val[0].e.r; ++rngR)
 						for(rngC = val[0].s.c; rngC <= val[0].e.c; ++rngC) {
-							cc = options.dense ? (out["!data"][rngR]||[])[rngC] : out[encode_cell({c:rngC,r:rngR})];
+							cc = options.dense ? (out[rngR]||[])[rngC] : out[encode_cell({c:rngC,r:rngR})];
 							if(cc) cc.l = val[1];
 						}
 				} break;
-				case 0x0800 /* HLinkTooltip */: {
+				case 'HLinkTooltip': {
 					for(rngR = val[0].s.r; rngR <= val[0].e.r; ++rngR)
 						for(rngC = val[0].s.c; rngC <= val[0].e.c; ++rngC) {
-							cc = options.dense ? (out["!data"][rngR]||[])[rngC] : out[encode_cell({c:rngC,r:rngR})];
+							cc = options.dense ? (out[rngR]||[])[rngC] : out[encode_cell({c:rngC,r:rngR})];
 							if(cc && cc.l) cc.l.Tooltip = val[1];
 							}
 				} break;
-				case 0x001c /* Note */: {
+
+				/* Comments */
+				case 'Note': {
 					if(opts.biff <= 5 && opts.biff >= 2) break; /* TODO: BIFF5 */
-					cc = options.dense ? (out["!data"][val[0].r]||[])[val[0].c] : out[encode_cell(val[0])];
+					cc = options.dense ? (out[val[0].r]||[])[val[0].c] : out[encode_cell(val[0])];
 					var noteobj = objects[val[2]];
-					if(!cc) {
-						if(options.dense) {
-							if(!out["!data"][val[0].r]) out["!data"][val[0].r] = [];
-							cc = out["!data"][val[0].r][val[0].c] = ({t:"z"}/*:any*/);
-						} else {
-							cc = out[encode_cell(val[0])] = ({t:"z"}/*:any*/);
-						}
-						range.e.r = Math.max(range.e.r, val[0].r);
-						range.s.r = Math.min(range.s.r, val[0].r);
-						range.e.c = Math.max(range.e.c, val[0].c);
-						range.s.c = Math.min(range.s.c, val[0].c);
-					}
+					if(!cc) break;
 					if(!cc.c) cc.c = [];
 					cmnt = {a:val[1],t:noteobj.TxO.t};
 					cc.c.push(cmnt);
 				} break;
-				case 0x087d /* XFExt */: update_xfext(XFs[val.ixfe], val.ext); break;
-				case 0x007d /* ColInfo */: {
+
+				default: switch(R.n) { /* nested */
+				case 'ClrtClient': break;
+				case 'XFExt': update_xfext(XFs[val.ixfe], val.ext); break;
+
+				case 'DefColWidth': defwidth = val; break;
+				case 'DefaultRowHeight': defheight = val[1]; break; // TODO: flags
+
+				case 'ColInfo': {
 					if(!opts.cellStyles) break;
 					while(val.e >= val.s) {
-						colinfo[val.e--] = { width: val.w/256, level: (val.level || 0), hidden: !!(val.flags & 1) };
+						colinfo[val.e--] = { width: val.w/256 };
 						if(!seencol) { seencol = true; find_mdw_colw(val.w/256); }
 						process_col(colinfo[val.e+1]);
 					}
 				} break;
-				case 0x0208 /* Row */: {
+				case 'Row': {
 					var rowobj = {};
 					if(val.level != null) { rowinfo[val.r] = rowobj; rowobj.level = val.level; }
 					if(val.hidden) { rowinfo[val.r] = rowobj; rowobj.hidden = true; }
@ -557,47 +565,274 @@ function parse_workbook(blob, options/*:ParseOpts*/)/*:Workbook*/ {
 						rowobj.hpt = val.hpt; rowobj.hpx = pt2px(val.hpt);
 					}
 				} break;
-				case 0x0026 /* LeftMargin */:
-				case 0x0027 /* RightMargin */:
-				case 0x0028 /* TopMargin */:
-				case 0x0029 /* BottomMargin */:
+
+				case 'LeftMargin':
+				case 'RightMargin':
+				case 'TopMargin':
+				case 'BottomMargin':
 					if(!out['!margins']) default_margins(out['!margins'] = {});
-					out['!margins'][({0x26: "left", 0x27:"right", 0x28:"top", 0x29:"bottom"})[RecordType]] = val;
+					out['!margins'][Rn.slice(0,-6).toLowerCase()] = val;
 					break;
-				case 0x00a1 /* Setup */: // TODO
+
+				case 'Setup': // TODO
 					if(!out['!margins']) default_margins(out['!margins'] = {});
 					out['!margins'].header = val.header;
 					out['!margins'].footer = val.footer;
 					break;
-				case 0x023e /* Window2 */: // TODO
+
+				case 'Window2': // TODO
 					// $FlowIgnore
 					if(val.RTL) Workbook.Views[0].RTL = true;
 					break;
-				case 0x0092 /* Palette */: palette = val; break;
-				case 0x0896 /* Theme */: themes = val; break;
-				case 0x008c /* Country */: country = val; break;
-				case 0x01ba /* CodeName */: {
+
+				case 'Header': break; // TODO
+				case 'Footer': break; // TODO
+				case 'HCenter': break; // TODO
+				case 'VCenter': break; // TODO
+				case 'Pls': break; // TODO
+				case 'GCW': break;
+				case 'LHRecord': break;
+				case 'DBCell': break; // TODO
+				case 'EntExU2': break; // TODO
+				case 'SxView': break; // TODO
+				case 'Sxvd': break; // TODO
+				case 'SXVI': break; // TODO
+				case 'SXVDEx': break; // TODO
+				case 'SxIvd': break; // TODO
+				case 'SXString': break; // TODO
+				case 'Sync': break;
+				case 'Addin': break;
+				case 'SXDI': break; // TODO
+				case 'SXLI': break; // TODO
+				case 'SXEx': break; // TODO
+				case 'QsiSXTag': break; // TODO
+				case 'Selection': break;
+				case 'Feat': break;
+				case 'FeatHdr': case 'FeatHdr11': break;
+				case 'Feature11': case 'Feature12': case 'List12': break;
+				case 'Country': country = val; break;
+				case 'RecalcId': break;
+				case 'DxGCol': break; // TODO: htmlify
+				case 'Fbi': case 'Fbi2': case 'GelFrame': break;
+				case 'Font': break; // TODO
+				case 'XFCRC': break; // TODO
+				case 'Style': break; // TODO
+				case 'StyleExt': break; // TODO
+				case 'Palette': palette = val; break;
+				case 'Theme': themes = val; break;
+				/* Protection */
+				case 'ScenarioProtect': break;
+				case 'ObjProtect': break;
+
+				/* Conditional Formatting */
+				case 'CondFmt12': break;
+
+				/* Table */
+				case 'Table': break; // TODO
+				case 'TableStyles': break; // TODO
+				case 'TableStyle': break; // TODO
+				case 'TableStyleElement': break; // TODO
+
+				/* PivotTable */
+				case 'SXStreamID': break; // TODO
+				case 'SXVS': break; // TODO
+				case 'DConRef': break; // TODO
+				case 'SXAddl': break; // TODO
+				case 'DConBin': break; // TODO
+				case 'DConName': break; // TODO
+				case 'SXPI': break; // TODO
+				case 'SxFormat': break; // TODO
+				case 'SxSelect': break; // TODO
+				case 'SxRule': break; // TODO
+				case 'SxFilt': break; // TODO
+				case 'SxItm': break; // TODO
+				case 'SxDXF': break; // TODO
+
+				/* Scenario Manager */
+				case 'ScenMan': break;
+
+				/* Data Consolidation */
+				case 'DCon': break;
+
+				/* Watched Cell */
+				case 'CellWatch': break;
+
+				/* Print Settings */
+				case 'PrintRowCol': break;
+				case 'PrintGrid': break;
+				case 'PrintSize': break;
+
+				case 'XCT': break;
+				case 'CRN': break;
+
+				case 'Scl': {
+					//console.log("Zoom Level:", val[0]/val[1],val);
+				} break;
+				case 'SheetExt': {
+					/* empty */
+				} break;
+				case 'SheetExtOptional': {
+					/* empty */
+				} break;
+
+				/* VBA */
+				case 'ObNoMacros': {
+					/* empty */
+				} break;
+				case 'ObProj': {
+					/* empty */
+				} break;
+				case 'CodeName': {
 					/*:: if(!Workbook.WBProps) Workbook.WBProps = {}; */
 					if(!cur_sheet) Workbook.WBProps.CodeName = val || "ThisWorkbook";
 					else wsprops.CodeName = val || wsprops.name;
 				} break;
-			}
-		} else {
-			if(!R) console.error("Missing Info for XLS Record 0x" + RecordType.toString(16));
-			blob.l += length;
-		}
+				case 'GUIDTypeLib': {
+					/* empty */
+				} break;
+
+				case 'WOpt': break; // TODO: WTF?
+				case 'PhoneticInfo': break;
+
+				case 'OleObjectSize': break;
+
+				/* Differential Formatting */
+				case 'DXF': case 'DXFN': case 'DXFN12': case 'DXFN12List': case 'DXFN12NoCB': break;
+
+				/* Data Validation */
+				case 'Dv': case 'DVal': break;
+
+				/* Data Series */
+				case 'BRAI': case 'Series': case 'SeriesText': break;
+
+				/* Data Connection */
+				case 'DConn': break;
+				case 'DbOrParamQry': break;
+				case 'DBQueryExt': break;
+
+				case 'OleDbConn': break;
+				case 'ExtString': break;
+
+				/* Formatting */
+				case 'IFmtRecord': break;
+				case 'CondFmt': case 'CF': case 'CF12': case 'CFEx': break;
+
+				/* Explicitly Ignored */
+				case 'Excel9File': break;
+				case 'Units': break;
+				case 'InterfaceHdr': case 'Mms': case 'InterfaceEnd': case 'DSF': break;
+				case 'BuiltInFnGroupCount': /* 2.4.30 0x0E or 0x10 but excel 2011 generates 0x11? */ break;
+				/* View Stuff */
+				case 'Window1': case 'HideObj': case 'GridSet': case 'Guts':
+				case 'UserBView': case 'UserSViewBegin': case 'UserSViewEnd':
+				case 'Pane': break;
+				default: switch(R.n) { /* nested */
+				/* Chart */
+				case 'Dat':
+				case 'Begin': case 'End':
+				case 'StartBlock': case 'EndBlock':
+				case 'Frame': case 'Area':
+				case 'Axis': case 'AxisLine': case 'Tick': break;
+				case 'AxesUsed':
+				case 'CrtLayout12': case 'CrtLayout12A': case 'CrtLink': case 'CrtLine': case 'CrtMlFrt': case 'CrtMlFrtContinue': break;
+				case 'LineFormat': case 'AreaFormat':
+				case 'Chart': case 'Chart3d': case 'Chart3DBarShape': case 'ChartFormat': case 'ChartFrtInfo': break;
+				case 'PlotArea': case 'PlotGrowth': break;
+				case 'SeriesList': case 'SerParent': case 'SerAuxTrend': break;
+				case 'DataFormat': case 'SerToCrt': case 'FontX': break;
+				case 'CatSerRange': case 'AxcExt': case 'SerFmt': break;
+				case 'ShtProps': break;
+				case 'DefaultText': case 'Text': case 'CatLab': break;
+				case 'DataLabExtContents': break;
+				case 'Legend': case 'LegendException': break;
+				case 'Pie': case 'Scatter': break;
+				case 'PieFormat': case 'MarkerFormat': break;
+				case 'StartObject': case 'EndObject': break;
+				case 'AlRuns': case 'ObjectLink': break;
+				case 'SIIndex': break;
+				case 'AttachedLabel': case 'YMult': break;
+
+				/* Chart Group */
+				case 'Line': case 'Bar': break;
+				case 'Surf': break;
+
+				/* Axis Group */
+				case 'AxisParent': break;
+				case 'Pos': break;
+				case 'ValueRange': break;
+
+				/* Pivot Chart */
+				case 'SXViewEx9': break; // TODO
+				case 'SXViewLink': break;
+				case 'PivotChartBits': break;
+				case 'SBaseRef': break;
+				case 'TextPropsStream': break;
+
+				/* Chart Misc */
+				case 'LnExt': break;
+				case 'MkrExt': break;
+				case 'CrtCoopt': break;
+
+				/* Query Table */
+				case 'Qsi': case 'Qsif': case 'Qsir': case 'QsiSXTag': break;
+				case 'TxtQry': break;
+
+				/* Filter */
+				case 'FilterMode': break;
+				case 'AutoFilter': case 'AutoFilterInfo': break;
+				case 'AutoFilter12': break;
+				case 'DropDownObjIds': break;
+				case 'Sort': break;
+				case 'SortData': break;
+
+				/* Drawing */
+				case 'ShapePropsStream': break;
+				case 'MsoDrawing': case 'MsoDrawingGroup': case 'MsoDrawingSelection': break;
+				/* Pub Stuff */
+				case 'WebPub': case 'AutoWebPub': break;
+
+				/* Print Stuff */
+				case 'HeaderFooter': case 'HFPicture': case 'PLV':
+				case 'HorizontalPageBreaks': case 'VerticalPageBreaks': break;
+				/* Behavioral */
+				case 'Backup': case 'CompressPictures': case 'Compat12': break;
+
+				/* Should not Happen */
+				case 'Continue': case 'ContinueFrt12': break;
+
+				/* Future Records */
+				case 'FrtFontList': case 'FrtWrapper': break;
+
+				default: switch(R.n) { /* nested */
+				/* BIFF5 records */
+				case 'TabIdConf': case 'Radar': case 'RadarArea': case 'DropBar': case 'Intl': case 'CoordList': case 'SerAuxErrBar': break;
+
+				/* BIFF2-4 records */
+				case 'BIFF2FONTCLR': case 'BIFF2FMTCNT': case 'BIFF2FONTXTRA': break;
+				case 'BIFF2XF': case 'BIFF3XF': case 'BIFF4XF': break;
+				case 'BIFF4FMTCNT': case 'BIFF2ROW': case 'BIFF2WINDOW2': break;
+
+				/* Miscellaneous */
+				case 'SCENARIO': case 'DConBin': case 'PicF': case 'DataLabExt':
+				case 'Lel': case 'BopPop': case 'BopPopCustom': case 'RealTimeData':
+				case 'Name': break;
+				case 'LHNGraph': case 'FnGroupName': case 'AddMenu': case 'LPr': break;
+				case 'ListObj': case 'ListField': break;
+				case 'RRSort': break;
+				case 'BigName': break;
+				case 'ToolbarHdr': case 'ToolbarEnd': break;
+				case 'DDEObjName': break;
+				case 'FRTArchId$': break;
+				default: if(options.WTF) throw 'Unrecognized Record ' + R.n;
+			}}}}
+		} else blob.l += length;
 	}
 	wb.SheetNames=keys(Directory).sort(function(a,b) { return Number(a) - Number(b); }).map(function(x){return Directory[x].name;});
 	if(!options.bookSheets) wb.Sheets=Sheets;
-	if(!wb.SheetNames.length && Preamble["!ref"]) {
-		wb.SheetNames.push("Sheet1");
-		/*jshint -W069 */
-		if(wb.Sheets) wb.Sheets["Sheet1"] = Preamble;
-		/*jshint +W069 */
-	} else wb.Preamble=Preamble;
 	if(wb.Sheets) FilterDatabases.forEach(function(r,i) { wb.Sheets[wb.SheetNames[i]]['!autofilter'] = r; });
+	wb.Preamble=Preamble;
 	wb.Strings = sst;
-	wb.SSF = dup(table_fmt);
+	wb.SSF = SSF.get_table();
 	if(opts.enc) wb.Encryption = opts.enc;
 	if(themes) wb.Themes = themes;
 	wb.Metadata = {};
@ -615,14 +850,14 @@ var PSCLSID = {
 };
 function parse_xls_props(cfb/*:CFBContainer*/, props, o) {
 	/* [MS-OSHARED] 2.3.3.2.2 Document Summary Information Property Set */
-	var DSI = CFB.find(cfb, '/!DocumentSummaryInformation');
+	var DSI = CFB.find(cfb, '!DocumentSummaryInformation');
 	if(DSI && DSI.size > 0) try {
 		var DocSummary = parse_PropertySetStream(DSI, DocSummaryPIDDSI, PSCLSID.DSI);
 		for(var d in DocSummary) props[d] = DocSummary[d];
 	} catch(e) {if(o.WTF) throw e;/* empty */}

 	/* [MS-OSHARED] 2.3.3.2.1 Summary Information Property Set*/
-	var SI = CFB.find(cfb, '/!SummaryInformation');
+	var SI = CFB.find(cfb, '!SummaryInformation');
 	if(SI && SI.size > 0) try {
 		var Summary = parse_PropertySetStream(SI, SummaryPIDSI, PSCLSID.SI);
 		for(var s in Summary) if(props[s] == null) props[s] = Summary[s];
@ -636,21 +871,17 @@ function parse_xls_props(cfb/*:CFBContainer*/, props, o) {
 function write_xls_props(wb/*:Workbook*/, cfb/*:CFBContainer*/) {
 	var DSEntries = [], SEntries = [], CEntries = [];
 	var i = 0, Keys;
-	var DocSummaryRE/*:{[key:string]:string}*/ = evert_key(DocSummaryPIDDSI, "n");
-	var SummaryRE/*:{[key:string]:string}*/ = evert_key(SummaryPIDSI, "n");
 	if(wb.Props) {
 		Keys = keys(wb.Props);
-		// $FlowIgnore
-		for(i = 0; i < Keys.length; ++i) (Object.prototype.hasOwnProperty.call(DocSummaryRE, Keys[i]) ? DSEntries : Object.prototype.hasOwnProperty.call(SummaryRE, Keys[i]) ? SEntries : CEntries).push([Keys[i], wb.Props[Keys[i]]]);
+		for(i = 0; i < Keys.length; ++i) (DocSummaryRE.hasOwnProperty(Keys[i]) ? DSEntries : SummaryRE.hasOwnProperty(Keys[i]) ? SEntries : CEntries).push([Keys[i], wb.Props[Keys[i]]]);
 	}
 	if(wb.Custprops) {
 		Keys = keys(wb.Custprops);
-		// $FlowIgnore
-		for(i = 0; i < Keys.length; ++i) if(!Object.prototype.hasOwnProperty.call((wb.Props||{}), Keys[i])) (Object.prototype.hasOwnProperty.call(DocSummaryRE, Keys[i]) ? DSEntries : Object.prototype.hasOwnProperty.call(SummaryRE, Keys[i]) ? SEntries : CEntries).push([Keys[i], wb.Custprops[Keys[i]]]);
+		for(i = 0; i < Keys.length; ++i) if(!wb.Props.hasOwnProperty(Keys[i])) (DocSummaryRE.hasOwnProperty(Keys[i]) ? DSEntries : SummaryRE.hasOwnProperty(Keys[i]) ? SEntries : CEntries).push([Keys[i], wb.Custprops[Keys[i]]]);
 	}
 	var CEntries2 = [];
 	for(i = 0; i < CEntries.length; ++i) {
-		if(XLSPSSkip.indexOf(CEntries[i][0]) > -1 || PseudoPropsPairs.indexOf(CEntries[i][0]) > -1) continue;
+		if(XLSPSSkip.indexOf(CEntries[i][0]) > -1) continue;
 		if(CEntries[i][1] == null) continue;
 		CEntries2.push(CEntries[i]);
 	}
@ -670,7 +901,7 @@ if(cfb.FullPaths) {
 	WB = CFB.find(cfb, '/Workbook') || CFB.find(cfb, '/Book');
 } else {
 	switch(options.type) {
-		case 'base64': cfb = s2a(Base64_decode(cfb)); break;
+		case 'base64': cfb = s2a(Base64.decode(cfb)); break;
 		case 'binary': cfb = s2a(cfb); break;
 		case 'buffer': break;
 		case 'array': if(!Array.isArray(cfb)) cfb = Array.prototype.slice.call(cfb); break;
@ -690,8 +921,6 @@ else/*:: if(cfb instanceof CFBContainer) */ {
 	else if((_data=CFB.find(cfb, 'PerfectOffice_MAIN')) && _data.content) WorkbookP = WK_.to_workbook(_data.content, (options.type = T, options));
 	/* Quattro Pro 9 */
 	else if((_data=CFB.find(cfb, 'NativeContent_MAIN')) && _data.content) WorkbookP = WK_.to_workbook(_data.content, (options.type = T, options));
-	/* Works 4 for Mac */
-	else if((_data=CFB.find(cfb, 'MN0')) && _data.content) throw new Error("Unsupported Works 4 for Mac file");
 	else throw new Error("Cannot find Workbook stream");
 	if(options.bookVBA && cfb.FullPaths && CFB.find(cfb, '/_VBA_PROJECT_CUR/VBA/dir')) WorkbookP.vbaraw = make_vba_xls(cfb);
 }
--- a/bits/77_parsetab.js
+++ b/bits/77_parsetab.js
--- a/bits/78_writebiff.js
+++ b/bits/78_writebiff.js
@ -1,5 +1,5 @@
-function write_biff_rec(ba/*:BufArray*/, type/*:number*/, payload, length/*:?number*/)/*:void*/ {
-	var t/*:number*/ = type;
+function write_biff_rec(ba/*:BufArray*/, type/*:number|string*/, payload, length/*:?number*/)/*:void*/ {
+	var t/*:number*/ = +type || +XLSRE[/*::String(*/type/*::)*/];
 	if(isNaN(t)) return;
 	var len = length || (payload||[]).length || 0;
 	var o = ba.next(4);
@ -8,29 +8,6 @@ function write_biff_rec(ba/*:BufArray*/, type/*:number*/, payload, length/*:?num
 	if(/*:: len != null &&*/len > 0 && is_buf(payload)) ba.push(payload);
 }

-function write_biff_continue(ba/*:BufArray*/, type/*:number*/, payload, length/*:?number*/)/*:void*/ {
-	var len = length || (payload||[]).length || 0;
-	if(len <= 8224) return write_biff_rec(ba, type, payload, len);
-	var t = type;
-	if(isNaN(t)) return;
-	var parts = payload.parts || [], sidx = 0;
-	var i = 0, w = 0;
-	while(w + (parts[sidx] || 8224) <= 8224) { w+= (parts[sidx] || 8224); sidx++; }
-	var o = ba.next(4);
-	o.write_shift(2, t);
-	o.write_shift(2, w);
-	ba.push(payload.slice(i, i + w));
-	i += w;
-	while(i < len) {
-		o = ba.next(4);
-		o.write_shift(2, 0x3c); // TODO: figure out correct continue type
-		w = 0;
-		while(w + (parts[sidx] || 8224) <= 8224) { w+= (parts[sidx] || 8224); sidx++; }
-		o.write_shift(2, w);
-		ba.push(payload.slice(i, i+w)); i+= w;
-	}
-}
-
 function write_BIFF2Cell(out, r/*:number*/, c/*:number*/) {
 	if(!out) out = new_buf(7);
 	out.write_shift(2, r);
@ -43,7 +20,8 @@ function write_BIFF2Cell(out, r/*:number*/, c/*:number*/) {
 function write_BIFF2BERR(r/*:number*/, c/*:number*/, val, t/*:?string*/) {
 	var out = new_buf(9);
 	write_BIFF2Cell(out, r, c);
-	write_Bes(val, t || 'b', out);
+	if(t == 'e') { out.write_shift(1, val); out.write_shift(1, 1); }
+	else { out.write_shift(1, val?1:0); out.write_shift(1, 0); }
 	return out;
 }

@ -68,27 +46,27 @@ function write_ws_biff2_cell(ba/*:BufArray*/, cell/*:Cell*/, R/*:number*/, C/*:n
 		case 'b': case 'e': write_biff_rec(ba, 0x0005, write_BIFF2BERR(R, C, cell.v, cell.t)); return;
 		/* TODO: codepage, sst */
 		case 's': case 'str':
-			write_biff_rec(ba, 0x0004, write_BIFF2LABEL(R, C, cell.v == null ? "" : String(cell.v).slice(0,255)));
+			write_biff_rec(ba, 0x0004, write_BIFF2LABEL(R, C, cell.v));
 			return;
 	}
 	write_biff_rec(ba, 0x0001, write_BIFF2Cell(null, R, C));
 }

 function write_ws_biff2(ba/*:BufArray*/, ws/*:Worksheet*/, idx/*:number*/, opts/*::, wb:Workbook*/) {
-	var dense = ws["!data"] != null;
+	var dense = Array.isArray(ws);
 	var range = safe_decode_range(ws['!ref'] || "A1"), ref/*:string*/, rr = "", cols/*:Array<string>*/ = [];
 	if(range.e.c > 0xFF || range.e.r > 0x3FFF) {
 		if(opts.WTF) throw new Error("Range " + (ws['!ref'] || "A1") + " exceeds format limit A1:IV16384");
 		range.e.c = Math.min(range.e.c, 0xFF);
 		range.e.r = Math.min(range.e.c, 0x3FFF);
+		ref = encode_range(range);
 	}
-	var row = [];
-	for(var C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
 	for(var R = range.s.r; R <= range.e.r; ++R) {
-		if(dense) row = ws["!data"][R] || [];
 		rr = encode_row(R);
-		for(C = range.s.c; C <= range.e.c; ++C) {
-			var cell = dense ? row[C] : ws[cols[C] + rr];
+		for(var C = range.s.c; C <= range.e.c; ++C) {
+			if(R === range.s.r) cols[C] = encode_col(C);
+			ref = cols[C] + rr;
+			var cell = dense ? (ws[R]||[])[C] : ws[ref];
 			if(!cell) continue;
 			/* write cell */
 			write_ws_biff2_cell(ba, cell, R, C, opts);
@ -99,11 +77,12 @@ function write_ws_biff2(ba/*:BufArray*/, ws/*:Worksheet*/, idx/*:number*/, opts/
 /* Based on test files */
 function write_biff2_buf(wb/*:Workbook*/, opts/*:WriteOpts*/) {
 	var o = opts || {};
+	if(DENSE != null && o.dense == null) o.dense = DENSE;
 	var ba = buf_array();
 	var idx = 0;
 	for(var i=0;i<wb.SheetNames.length;++i) if(wb.SheetNames[i] == o.sheet) idx=i;
 	if(idx == 0 && !!o.sheet && wb.SheetNames[0] != o.sheet) throw new Error("Sheet not found: " + o.sheet);
-	write_biff_rec(ba, (o.biff == 4 ? 0x0409 : (o.biff == 3 ? 0x0209 : 0x0009)), write_BOF(wb, 0x10, o));
+	write_biff_rec(ba, 0x0009, write_BOF(wb, 0x10, o));
 	/* ... */
 	write_ws_biff2(ba, wb.Sheets[wb.SheetNames[idx]], idx, o, wb);
 	/* ... */
@ -112,7 +91,7 @@ function write_biff2_buf(wb/*:Workbook*/, opts/*:WriteOpts*/) {
 }

 function write_FONTS_biff8(ba, data, opts) {
-	write_biff_rec(ba, 0x0031 /* Font */, write_Font({
+	write_biff_rec(ba, "Font", write_Font({
 		sz:12,
 		color: {theme:1},
 		name: "Arial",
@ -126,7 +105,7 @@ function write_FMTS_biff8(ba, NF/*:?SSFTable*/, opts) {
 	if(!NF) return;
 	[[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
 		/*:: if(!NF) return; */
-		for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) write_biff_rec(ba, 0x041E /* Format */, write_Format(i, NF[i], opts));
+		for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) write_biff_rec(ba, "Format", write_Format(i, NF[i], opts));
 	});
 }

@ -135,7 +114,7 @@ function write_FEAT(ba, ws) {
 	var o = new_buf(19);
 	o.write_shift(4, 0x867); o.write_shift(4, 0); o.write_shift(4, 0);
 	o.write_shift(2, 3); o.write_shift(1, 1); o.write_shift(4, 0);
-	write_biff_rec(ba, 0x0867 /* FeatHdr */, o);
+	write_biff_rec(ba, "FeatHdr", o);
 	/* [MS-XLS] 2.4.111 */
 	o = new_buf(39);
 	o.write_shift(4, 0x868); o.write_shift(4, 0); o.write_shift(4, 0);
@ -143,61 +122,40 @@ function write_FEAT(ba, ws) {
 	o.write_shift(2, 1); o.write_shift(4, 4); o.write_shift(2, 0);
 	write_Ref8U(safe_decode_range(ws['!ref']||"A1"), o);
 	o.write_shift(4, 4);
-	write_biff_rec(ba, 0x0868 /* Feat */, o);
+	write_biff_rec(ba, "Feat", o);
 }

 function write_CELLXFS_biff8(ba, opts) {
-	for(var i = 0; i < 16; ++i) write_biff_rec(ba, 0x00e0 /* XF */, write_XF({numFmtId:0, style:true}, 0, opts));
+	for(var i = 0; i < 16; ++i) write_biff_rec(ba, "XF", write_XF({numFmtId:0, style:true}, 0, opts));
 	opts.cellXfs.forEach(function(c) {
-		write_biff_rec(ba, 0x00e0 /* XF */, write_XF(c, 0, opts));
+		write_biff_rec(ba, "XF", write_XF(c, 0, opts));
 	});
 }

 function write_ws_biff8_hlinks(ba/*:BufArray*/, ws) {
 	for(var R=0; R<ws['!links'].length; ++R) {
 		var HL = ws['!links'][R];
-		write_biff_rec(ba, 0x01b8 /* HLink */, write_HLink(HL));
-		if(HL[1].Tooltip) write_biff_rec(ba, 0x0800 /* HLinkTooltip */, write_HLinkTooltip(HL));
+		write_biff_rec(ba, "HLink", write_HLink(HL));
+		if(HL[1].Tooltip) write_biff_rec(ba, "HLinkTooltip", write_HLinkTooltip(HL));
 	}
 	delete ws['!links'];
 }

-function write_ws_cols_biff8(ba, cols) {
-	if(!cols) return;
-	var cnt = 0;
-	cols.forEach(function(col, idx) {
-		if(++cnt <= 256 && col) {
-			write_biff_rec(ba, 0x007d /* ColInfo */, write_ColInfo(col_obj_w(idx, col), idx));
-		}
-	});
-}
-
 function write_ws_biff8_cell(ba/*:BufArray*/, cell/*:Cell*/, R/*:number*/, C/*:number*/, opts) {
 	var os = 16 + get_cell_style(opts.cellXfs, cell, opts);
-	if(cell.v == null && !cell.bf) {
-		write_biff_rec(ba, 0x0201 /* Blank */, write_XLSCell(R, C, os));
-		return;
-	}
-	if(cell.bf) write_biff_rec(ba, 0x0006 /* Formula */, write_Formula(cell, R, C, opts, os));
-	else switch(cell.t) {
+	if(cell.v != null) switch(cell.t) {
 		case 'd': case 'n':
 			var v = cell.t == 'd' ? datenum(parseDate(cell.v)) : cell.v;
 			/* TODO: emit RK as appropriate */
-			write_biff_rec(ba, 0x0203 /* Number */, write_Number(R, C, v, os, opts));
-			break;
-		case 'b': case 'e':
-			write_biff_rec(ba, 0x0205 /* BoolErr */, write_BoolErr(R, C, cell.v, os, opts, cell.t));
-			break;
+			write_biff_rec(ba, "Number", write_Number(R, C, v, os, opts));
+			return;
+		case 'b': case 'e': write_biff_rec(ba, 0x0205, write_BoolErr(R, C, cell.v, os, opts, cell.t)); return;
 		/* TODO: codepage, sst */
 		case 's': case 'str':
-			if(opts.bookSST) {
-				var isst = get_sst_id(opts.Strings, cell.v == null ? "" : String(cell.v), opts.revStrings);
-				write_biff_rec(ba, 0x00fd /* LabelSst */, write_LabelSst(R, C, isst, os, opts));
-			} else write_biff_rec(ba, 0x0204 /* Label */, write_Label(R, C, (cell.v == null ? "" : String(cell.v)).slice(0,255), os, opts));
-			break;
-		default:
-			write_biff_rec(ba, 0x0201 /* Blank */, write_XLSCell(R, C, os));
+			write_biff_rec(ba, "Label", write_Label(R, C, cell.v, os, opts));
+			return;
 	}
+	write_biff_rec(ba, "Blank", write_XLSCell(R, C, os));
 }

 /* [MS-XLS] 2.1.7.20.5 */
@ -206,7 +164,7 @@ function write_ws_biff8(idx/*:number*/, opts, wb/*:Workbook*/) {
 	var s = wb.SheetNames[idx], ws = wb.Sheets[s] || {};
 	var _WB/*:WBWBProps*/ = ((wb||{}).Workbook||{}/*:any*/);
 	var _sheet/*:WBWSProp*/ = ((_WB.Sheets||[])[idx]||{}/*:any*/);
-	var dense = ws["!data"] != null;
+	var dense = Array.isArray(ws);
 	var b8 = opts.biff == 8;
 	var ref/*:string*/, rr = "", cols/*:Array<string>*/ = [];
 	var range = safe_decode_range(ws['!ref'] || "A1");
@ -218,60 +176,50 @@ function write_ws_biff8(idx/*:number*/, opts, wb/*:Workbook*/) {
 	}

 	write_biff_rec(ba, 0x0809, write_BOF(wb, 0x10, opts));
-	/* [Uncalced] Index */
-	write_biff_rec(ba, 0x000d /* CalcMode */, writeuint16(1));
-	write_biff_rec(ba, 0x000c /* CalcCount */, writeuint16(100));
-	write_biff_rec(ba, 0x000f /* CalcRefMode */, writebool(true));
-	write_biff_rec(ba, 0x0011 /* CalcIter */, writebool(false));
-	write_biff_rec(ba, 0x0010 /* CalcDelta */, write_Xnum(0.001));
-	write_biff_rec(ba, 0x005f /* CalcSaveRecalc */, writebool(true));
-	write_biff_rec(ba, 0x002a /* PrintRowCol */, writebool(false));
-	write_biff_rec(ba, 0x002b /* PrintGrid */, writebool(false));
-	write_biff_rec(ba, 0x0082 /* GridSet */, writeuint16(1));
-	write_biff_rec(ba, 0x0080 /* Guts */, write_Guts([0,0]));
-	/* DefaultRowHeight WsBool [Sync] [LPr] [HorizontalPageBreaks] [VerticalPageBreaks] */
-	/* Header (string) */
-	/* Footer (string) */
-	write_biff_rec(ba, 0x0083 /* HCenter */, writebool(false));
-	write_biff_rec(ba, 0x0084 /* VCenter */, writebool(false));
 	/* ... */
-	if(b8) write_ws_cols_biff8(ba, ws["!cols"]);
+	write_biff_rec(ba, "CalcMode", writeuint16(1));
+	write_biff_rec(ba, "CalcCount", writeuint16(100));
+	write_biff_rec(ba, "CalcRefMode", writebool(true));
+	write_biff_rec(ba, "CalcIter", writebool(false));
+	write_biff_rec(ba, "CalcDelta", write_Xnum(0.001));
+	write_biff_rec(ba, "CalcSaveRecalc", writebool(true));
+	write_biff_rec(ba, "PrintRowCol", writebool(false));
+	write_biff_rec(ba, "PrintGrid", writebool(false));
+	write_biff_rec(ba, "GridSet", writeuint16(1));
+	write_biff_rec(ba, "Guts", write_Guts([0,0]));
 	/* ... */
-	write_biff_rec(ba, 0x0200 /* Dimensions */, write_Dimensions(range, opts));
+	write_biff_rec(ba, "HCenter", writebool(false));
+	write_biff_rec(ba, "VCenter", writebool(false));
+	/* ... */
+	write_biff_rec(ba, "Dimensions", write_Dimensions(range, opts));
 	/* ... */

 	if(b8) ws['!links'] = [];
-	var comments = [];
-	var row = [];
-	for(var C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
 	for(var R = range.s.r; R <= range.e.r; ++R) {
-		if(dense) row = ws["!data"][R] || [];
 		rr = encode_row(R);
-		for(C = range.s.c; C <= range.e.c; ++C) {
+		for(var C = range.s.c; C <= range.e.c; ++C) {
+			if(R === range.s.r) cols[C] = encode_col(C);
 			ref = cols[C] + rr;
-			var cell = dense ? row[C] : ws[ref];
+			var cell = dense ? (ws[R]||[])[C] : ws[ref];
 			if(!cell) continue;
 			/* write cell */
 			write_ws_biff8_cell(ba, cell, R, C, opts);
 			if(b8 && cell.l) ws['!links'].push([ref, cell.l]);
-			if(b8 && cell.c) comments.push([ref, cell.c]);
 		}
 	}
 	var cname/*:string*/ = _sheet.CodeName || _sheet.name || s;
 	/* ... */
-	// if(b8) comments.forEach(function(comment) { write_biff_rec(ba, 0x001c /* Note */, write_NoteSh(comment)); });
+	if(b8 && _WB.Views) write_biff_rec(ba, "Window2", write_Window2(_WB.Views[0]));
 	/* ... */
-	if(b8) write_biff_rec(ba, 0x023e /* Window2 */, write_Window2((_WB.Views||[])[0]));
+	if(b8 && (ws['!merges']||[]).length) write_biff_rec(ba, "MergeCells", write_MergeCells(ws['!merges']));
 	/* ... */
-	if(b8 && (ws['!merges']||[]).length) write_biff_rec(ba, 0x00e5 /* MergeCells */, write_MergeCells(ws['!merges']));
-	/* [LRng] *QUERYTABLE [PHONETICINFO] CONDFMTS */
 	if(b8) write_ws_biff8_hlinks(ba, ws);
-	/* [DVAL] */
-	write_biff_rec(ba, 0x01ba /* CodeName */, write_XLUnicodeString(cname, opts));
-	/* *WebPub *CellWatch [SheetExt] */
+	/* ... */
+	write_biff_rec(ba, "CodeName", write_XLUnicodeString(cname, opts));
+	/* ... */
 	if(b8) write_FEAT(ba, ws);
-	/* *FEAT11 *RECORD12 */
-	write_biff_rec(ba, 0x000a /* EOF */);
+	/* ... */
+	write_biff_rec(ba, "EOF");
 	return ba.end();
 }

@ -283,59 +231,47 @@ function write_biff8_global(wb/*:Workbook*/, bufs, opts/*:WriteOpts*/) {
 	var _wb/*:WBProps*/ = /*::((*/_WB.WBProps||{/*::CodeName:"ThisWorkbook"*/}/*:: ):any)*/;
 	var b8 = opts.biff == 8, b5 = opts.biff == 5;
 	write_biff_rec(A, 0x0809, write_BOF(wb, 0x05, opts));
-	if(opts.bookType == "xla") write_biff_rec(A, 0x0087 /* Addin */);
-	write_biff_rec(A, 0x00e1 /* InterfaceHdr */, b8 ? writeuint16(0x04b0) : null);
-	write_biff_rec(A, 0x00c1 /* Mms */, writezeroes(2));
-	if(b5) write_biff_rec(A, 0x00bf /* ToolbarHdr */);
-	if(b5) write_biff_rec(A, 0x00c0 /* ToolbarEnd */);
-	write_biff_rec(A, 0x00e2 /* InterfaceEnd */);
-	write_biff_rec(A, 0x005c /* WriteAccess */, write_WriteAccess("SheetJS", opts));
-	/* [FileSharing] */
-	write_biff_rec(A, 0x0042 /* CodePage */, writeuint16(b8 ? 0x04b0 : 0x04E4));
-	/* *2047 Lel */
-	if(b8) write_biff_rec(A, 0x0161 /* DSF */, writeuint16(0));
-	if(b8) write_biff_rec(A, 0x01c0 /* Excel9File */);
-	write_biff_rec(A, 0x013d /* RRTabId */, write_RRTabId(wb.SheetNames.length));
-	if(b8 && wb.vbaraw) write_biff_rec(A, 0x00d3 /* ObProj */);
-	/* [ObNoMacros] */
+	if(opts.bookType == "xla") write_biff_rec(A, "Addin");
+	write_biff_rec(A, "InterfaceHdr", b8 ? writeuint16(0x04b0) : null);
+	write_biff_rec(A, "Mms", writezeroes(2));
+	if(b5) write_biff_rec(A, "ToolbarHdr");
+	if(b5) write_biff_rec(A, "ToolbarEnd");
+	write_biff_rec(A, "InterfaceEnd");
+	write_biff_rec(A, "WriteAccess", write_WriteAccess("SheetJS", opts));
+	write_biff_rec(A, "CodePage", writeuint16(b8 ? 0x04b0 : 0x04E4));
+	if(b8) write_biff_rec(A, "DSF", writeuint16(0));
+	if(b8) write_biff_rec(A, "Excel9File");
+	write_biff_rec(A, "RRTabId", write_RRTabId(wb.SheetNames.length));
 	if(b8 && wb.vbaraw) {
+		write_biff_rec(A, "ObProj");
 		var cname/*:string*/ = _wb.CodeName || "ThisWorkbook";
-		write_biff_rec(A, 0x01ba /* CodeName */, write_XLUnicodeString(cname, opts));
+		write_biff_rec(A, "CodeName", write_XLUnicodeString(cname, opts));
 	}
-	write_biff_rec(A, 0x009c /* BuiltInFnGroupCount */, writeuint16(0x11));
-	/* *FnGroupName *FnGrp12 */
-	/* *Lbl */
-	/* [OleObjectSize] */
-	write_biff_rec(A, 0x0019 /* WinProtect */, writebool(false));
-	write_biff_rec(A, 0x0012 /* Protect */, writebool(false));
-	write_biff_rec(A, 0x0013 /* Password */, writeuint16(0));
-	if(b8) write_biff_rec(A, 0x01af /* Prot4Rev */, writebool(false));
-	if(b8) write_biff_rec(A, 0x01bc /* Prot4RevPass */, writeuint16(0));
-	write_biff_rec(A, 0x003d /* Window1 */, write_Window1(opts));
-	write_biff_rec(A, 0x0040 /* Backup */, writebool(false));
-	write_biff_rec(A, 0x008d /* HideObj */, writeuint16(0));
-	write_biff_rec(A, 0x0022 /* Date1904 */, writebool(safe1904(wb)=="true"));
-	write_biff_rec(A, 0x000e /* CalcPrecision */, writebool(true));
-	if(b8) write_biff_rec(A, 0x01b7 /* RefreshAll */, writebool(false));
-	write_biff_rec(A, 0x00DA /* BookBool */, writeuint16(0));
+	write_biff_rec(A, "BuiltInFnGroupCount", writeuint16(0x11));
+	write_biff_rec(A, "WinProtect", writebool(false));
+	write_biff_rec(A, "Protect", writebool(false));
+	write_biff_rec(A, "Password", writeuint16(0));
+	if(b8) write_biff_rec(A, "Prot4Rev", writebool(false));
+	if(b8) write_biff_rec(A, "Prot4RevPass", writeuint16(0));
+	write_biff_rec(A, "Window1", write_Window1(opts));
+	write_biff_rec(A, "Backup", writebool(false));
+	write_biff_rec(A, "HideObj", writeuint16(0));
+	write_biff_rec(A, "Date1904", writebool(safe1904(wb)=="true"));
+	write_biff_rec(A, "CalcPrecision", writebool(true));
+	if(b8) write_biff_rec(A, "RefreshAll", writebool(false));
+	write_biff_rec(A, "BookBool", writeuint16(0));
 	/* ... */
 	write_FONTS_biff8(A, wb, opts);
 	write_FMTS_biff8(A, wb.SSF, opts);
 	write_CELLXFS_biff8(A, opts);
 	/* ... */
-	if(b8) write_biff_rec(A, 0x0160 /* UsesELFs */, writebool(false));
+	if(b8) write_biff_rec(A, "UsesELFs", writebool(false));
 	var a = A.end();

 	var C = buf_array();
-	/* METADATA [MTRSettings] [ForceFullCalculation] */
-	if(b8) write_biff_rec(C, 0x008C /* Country */, write_Country());
-	/* *SUPBOOK *LBL *RTD [RecalcId] *HFPicture *MSODRAWINGGROUP */
-
+	if(b8) write_biff_rec(C, "Country", write_Country());
 	/* BIFF8: [SST *Continue] ExtSST */
-	if(b8 && opts.Strings) write_biff_continue(C, 0x00FC /* SST */, write_SST(opts.Strings, opts));
-
-	/* *WebPub [WOpt] [CrErr] [BookExt] *FeatHdr *DConn [THEME] [CompressPictures] [Compat12] [GUIDTypeLib] */
-	write_biff_rec(C, 0x000A /* EOF */);
+	write_biff_rec(C, "EOF");
 	var c = C.end();

 	var B = buf_array();
@ -344,7 +280,7 @@ function write_biff8_global(wb/*:Workbook*/, bufs, opts/*:WriteOpts*/) {
 	var start = a.length + blen + c.length;
 	for(j = 0; j < wb.SheetNames.length; ++j) {
 		var _sheet/*:WBWSProp*/ = _sheets[j] || ({}/*:any*/);
-		write_biff_rec(B, 0x0085 /* BoundSheet8 */, write_BoundSheet8({pos:start, hs:_sheet.Hidden||0, dt:0, name:wb.SheetNames[j]}, opts));
+		write_biff_rec(B, "BoundSheet8", write_BoundSheet8({pos:start, hs:_sheet.Hidden||0, dt:0, name:wb.SheetNames[j]}, opts));
 		start += bufs[j].length;
 	}
 	/* 1*BoundSheet8 */
@ -355,7 +291,7 @@ function write_biff8_global(wb/*:Workbook*/, bufs, opts/*:WriteOpts*/) {
 	if(a.length) out.push(a);
 	if(b.length) out.push(b);
 	if(c.length) out.push(c);
-	return bconcat(out);
+	return __toBuffer([out]);
 }

 /* [MS-XLS] 2.1.7.20 Workbook Stream */
@ -364,38 +300,24 @@ function write_biff8_buf(wb/*:Workbook*/, opts/*:WriteOpts*/) {
 	var bufs = [];

 	if(wb && !wb.SSF) {
-		wb.SSF = dup(table_fmt);
+		wb.SSF = SSF.get_table();
 	}
 	if(wb && wb.SSF) {
-		make_ssf(); SSF_load_table(wb.SSF);
+		make_ssf(SSF); SSF.load_table(wb.SSF);
 		// $FlowIgnore
 		o.revssf = evert_num(wb.SSF); o.revssf[wb.SSF[65535]] = 0;
 		o.ssf = wb.SSF;
 	}
-
-	o.Strings = /*::((*/[]/*:: :any):SST)*/; o.Strings.Count = 0; o.Strings.Unique = 0;
-	fix_write_opts(o);
-
 	o.cellXfs = [];
+	o.Strings = /*::((*/[]/*:: :any):SST)*/; o.Strings.Count = 0; o.Strings.Unique = 0;
 	get_cell_style(o.cellXfs, {}, {revssf:{"General":0}});

-	if(!wb.Props) wb.Props = {};
-
 	for(var i = 0; i < wb.SheetNames.length; ++i) bufs[bufs.length] = write_ws_biff8(i, o, wb);
 	bufs.unshift(write_biff8_global(wb, bufs, o));
-	return bconcat(bufs);
+	return __toBuffer([bufs]);
 }

 function write_biff_buf(wb/*:Workbook*/, opts/*:WriteOpts*/) {
-	for(var i = 0; i <= wb.SheetNames.length; ++i) {
-		var ws = wb.Sheets[wb.SheetNames[i]];
-		if(!ws || !ws["!ref"]) continue;
-		var range = decode_range(ws["!ref"]);
-		if(range.e.c > 255) { // note: 255 is IV
-			if(typeof console != "undefined" && console.error) console.error("Worksheet '" + wb.SheetNames[i] + "' extends beyond column IV (255).  Data may be lost.");
-		}
-	}
-
 	var o = opts || {};
 	switch(o.biff || 2) {
 		case 8: case 5: return write_biff8_buf(wb, opts);
--- a/bits/79_html.js
+++ b/bits/79_html.js
@ -1,184 +1,142 @@
 /* note: browser DOM element cannot see mso- style attrs, must parse */
-function html_to_sheet(str/*:string*/, _opts)/*:Workbook*/ {
-	var opts = _opts || {};
-	var dense = (opts.dense != null) ? opts.dense : DENSE;
-	var ws/*:Worksheet*/ = ({}/*:any*/); if(dense) ws["!data"] = [];
-	str = str.replace(/<!--.*?-->/g, "");
-	var mtch/*:any*/ = str.match(/<table/i);
-	if(!mtch) throw new Error("Invalid HTML: could not find <table>");
-	var mtch2/*:any*/ = str.match(/<\/table/i);
-	var i/*:number*/ = mtch.index, j/*:number*/ = mtch2 && mtch2.index || str.length;
-	var rows = split_regex(str.slice(i, j), /(:?<tr[^>]*>)/i, "<tr>");
-	var R = -1, C = 0, RS = 0, CS = 0;
-	var range/*:Range*/ = {s:{r:10000000, c:10000000},e:{r:0,c:0}};
-	var merges/*:Array<Range>*/ = [];
-	for(i = 0; i < rows.length; ++i) {
-		var row = rows[i].trim();
-		var hd = row.slice(0,3).toLowerCase();
-		if(hd == "<tr") { ++R; if(opts.sheetRows && opts.sheetRows <= R) { --R; break; } C = 0; continue; }
-		if(hd != "<td" && hd != "<th") continue;
-		var cells = row.split(/<\/t[dh]>/i);
-		for(j = 0; j < cells.length; ++j) {
-			var cell = cells[j].trim();
-			if(!cell.match(/<t[dh]/i)) continue;
-			var m = cell, cc = 0;
-			/* TODO: parse styles etc */
-			while(m.charAt(0) == "<" && (cc = m.indexOf(">")) > -1) m = m.slice(cc+1);
-			for(var midx = 0; midx < merges.length; ++midx) {
-				var _merge/*:Range*/ = merges[midx];
-				if(_merge.s.c == C && _merge.s.r < R && R <= _merge.e.r) { C = _merge.e.c + 1; midx = -1; }
+var HTML_ = (function() {
+	function html_to_sheet(str/*:string*/, _opts)/*:Workbook*/ {
+		var opts = _opts || {};
+		if(DENSE != null && opts.dense == null) opts.dense = DENSE;
+		var ws/*:Worksheet*/ = opts.dense ? ([]/*:any*/) : ({}/*:any*/);
+		var mtch/*:any*/ = str.match(/<table/i);
+		if(!mtch) throw new Error("Invalid HTML: could not find <table>");
+		var mtch2/*:any*/ = str.match(/<\/table/i);
+		var i/*:number*/ = mtch.index, j/*:number*/ = mtch2 && mtch2.index || str.length;
+		var rows = split_regex(str.slice(i, j), /(:?<tr[^>]*>)/i, "<tr>");
+		var R = -1, C = 0, RS = 0, CS = 0;
+		var range/*:Range*/ = {s:{r:10000000, c:10000000},e:{r:0,c:0}};
+		var merges/*:Array<Range>*/ = [];
+		for(i = 0; i < rows.length; ++i) {
+			var row = rows[i].trim();
+			var hd = row.slice(0,3).toLowerCase();
+			if(hd == "<tr") { ++R; if(opts.sheetRows && opts.sheetRows <= R) { --R; break; } C = 0; continue; }
+			if(hd != "<td" && hd != "<th") continue;
+			var cells = row.split(/<\/t[dh]>/i);
+			for(j = 0; j < cells.length; ++j) {
+				var cell = cells[j].trim();
+				if(!cell.match(/<t[dh]/i)) continue;
+				var m = cell, cc = 0;
+				/* TODO: parse styles etc */
+				while(m.charAt(0) == "<" && (cc = m.indexOf(">")) > -1) m = m.slice(cc+1);
+				var tag = parsexmltag(cell.slice(0, cell.indexOf(">")));
+				CS = tag.colspan ? +tag.colspan : 1;
+				if((RS = +tag.rowspan)>0 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
+				var _t/*:string*/ = tag.t || "";
+				/* TODO: generate stub cells */
+				if(!m.length) { C += CS; continue; }
+				m = htmldecode(unescapexml(m));
+				if(range.s.r > R) range.s.r = R; if(range.e.r < R) range.e.r = R;
+				if(range.s.c > C) range.s.c = C; if(range.e.c < C) range.e.c = C;
+				if(!m.length) continue;
+				var o/*:Cell*/ = {t:'s', v:m};
+				if(opts.raw || !m.trim().length || _t == 's'){}
+				else if(m === 'TRUE') o = {t:'b', v:true};
+				else if(m === 'FALSE') o = {t:'b', v:false};
+				else if(!isNaN(fuzzynum(m))) o = {t:'n', v:fuzzynum(m)};
+				else if(!isNaN(fuzzydate(m).getDate())) {
+					o = ({t:'d', v:parseDate(m)}/*:any*/);
+					if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)}/*:any*/);
+					o.z = opts.dateNF || SSF._table[14];
+				}
+				if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
+				else ws[encode_cell({r:R, c:C})] = o;
+				C += CS;
 			}
-			var tag = parsexmltag(cell.slice(0, cell.indexOf(">")));
-			CS = tag.colspan ? +tag.colspan : 1;
-			if((RS = +tag.rowspan)>1 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
-			var _t/*:string*/ = tag.t || tag["data-t"] || "";
-			/* TODO: generate stub cells */
-			if(!m.length) { C += CS; continue; }
-			m = htmldecode(m);
-			if(range.s.r > R) range.s.r = R; if(range.e.r < R) range.e.r = R;
-			if(range.s.c > C) range.s.c = C; if(range.e.c < C) range.e.c = C;
-			if(!m.length) { C += CS; continue; }
-			var o/*:Cell*/ = {t:'s', v:m};
-			if(opts.raw || !m.trim().length || _t == 's'){}
-			else if(m === 'TRUE') o = {t:'b', v:true};
-			else if(m === 'FALSE') o = {t:'b', v:false};
-			else if(!isNaN(fuzzynum(m))) o = {t:'n', v:fuzzynum(m)};
-			else if(!isNaN(fuzzydate(m).getDate())) {
-				o = ({t:'d', v:parseDate(m)}/*:any*/);
-				if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)}/*:any*/);
-				o.z = opts.dateNF || table_fmt[14];
+		}
+		ws['!ref'] = encode_range(range);
+		return ws;
+	}
+	function html_to_book(str/*:string*/, opts)/*:Workbook*/ {
+		return sheet_to_workbook(html_to_sheet(str, opts), opts);
+	}
+	function make_html_row(ws/*:Worksheet*/, r/*:Range*/, R/*:number*/, o/*:Sheet2HTMLOpts*/)/*:string*/ {
+		var M/*:Array<Range>*/ = (ws['!merges'] ||[]);
+		var oo/*:Array<string>*/ = [];
+		var nullcell = "<td>" + (o.editable ? '<span contenteditable="true"></span>' : "" ) + "</td>";
+		for(var C = r.s.c; C <= r.e.c; ++C) {
+			var RS = 0, CS = 0;
+			for(var j = 0; j < M.length; ++j) {
+				if(M[j].s.r > R || M[j].s.c > C) continue;
+				if(M[j].e.r < R || M[j].e.c < C) continue;
+				if(M[j].s.r < R || M[j].s.c < C) { RS = -1; break; }
+				RS = M[j].e.r - M[j].s.r + 1; CS = M[j].e.c - M[j].s.c + 1; break;
 			}
-			if(dense) { if(!ws["!data"][R]) ws["!data"][R] = []; ws["!data"][R][C] = o; }
-			else ws[encode_cell({r:R, c:C})] = o;
-			C += CS;
+			if(RS < 0) continue;
+			var coord = encode_cell({r:R,c:C});
+			var cell = o.dense ? (ws[R]||[])[C] : ws[coord];
+			if(!cell || cell.v == null) { oo.push(nullcell); continue; }
+			/* TODO: html entities */
+			var w = cell.h || escapexml(cell.w || (format_cell(cell), cell.w) || "");
+			var sp = {};
+			if(RS > 1) sp.rowspan = RS;
+			if(CS > 1) sp.colspan = CS;
+			sp.t = cell.t;
+			if(o.editable) w = '<span contenteditable="true">' + w + '</span>';
+			sp.id = "sjs-" + coord;
+			oo.push(writextag('td', w, sp));
 		}
+		var preamble = "<tr>";
+		return preamble + oo.join("") + "</tr>";
 	}
-	ws['!ref'] = encode_range(range);
-	if(merges.length) ws["!merges"] = merges;
-	return ws;
-}
-function make_html_row(ws/*:Worksheet*/, r/*:Range*/, R/*:number*/, o/*:Sheet2HTMLOpts*/)/*:string*/ {
-	var M/*:Array<Range>*/ = (ws['!merges'] ||[]);
-	var oo/*:Array<string>*/ = [];
-	var sp = ({}/*:any*/);
-	var dense = ws["!data"] != null;
-	for(var C = r.s.c; C <= r.e.c; ++C) {
-		var RS = 0, CS = 0;
-		for(var j = 0; j < M.length; ++j) {
-			if(M[j].s.r > R || M[j].s.c > C) continue;
-			if(M[j].e.r < R || M[j].e.c < C) continue;
-			if(M[j].s.r < R || M[j].s.c < C) { RS = -1; break; }
-			RS = M[j].e.r - M[j].s.r + 1; CS = M[j].e.c - M[j].s.c + 1; break;
-		}
-		if(RS < 0) continue;
-		var coord = encode_col(C) + encode_row(R);
-		var cell = dense ? (ws["!data"][R]||[])[C] : ws[coord];
-		/* TODO: html entities */
-		var w = (cell && cell.v != null) && (cell.h || escapehtml(cell.w || (format_cell(cell), cell.w) || "")) || "";
-		sp = ({}/*:any*/);
-		if(RS > 1) sp.rowspan = RS;
-		if(CS > 1) sp.colspan = CS;
-		if(o.editable) w = '<span contenteditable="true">' + w + '</span>';
-		else if(cell) {
-			sp["data-t"] = cell && cell.t || 'z';
-			if(cell.v != null) sp["data-v"] = cell.v;
-			if(cell.z != null) sp["data-z"] = cell.z;
-			if(cell.l && (cell.l.Target || "#").charAt(0) != "#") w = '<a href="' + cell.l.Target +'">' + w + '</a>';
-		}
-		sp.id = (o.id || "sjs") + "-" + coord;
-		oo.push(writextag('td', w, sp));
+	function make_html_preamble(ws/*:Worksheet*/, R/*:Range*/, o/*:Sheet2HTMLOpts*/)/*:string*/ {
+		var out/*:Array<string>*/ = [];
+		return out.join("") + '<table' + (o && o.id ? ' id="' + o.id + '"' : "") + '>';
 	}
-	var preamble = "<tr>";
-	return preamble + oo.join("") + "</tr>";
-}
-
-var HTML_BEGIN = '<html><head><meta charset="utf-8"/><title>SheetJS Table Export</title></head><body>';
-var HTML_END = '</body></html>';
-
-function html_to_workbook(str/*:string*/, opts)/*:Workbook*/ {
-	var mtch = str.match(/<table[\s\S]*?>[\s\S]*?<\/table>/gi);
-	if(!mtch || mtch.length == 0) throw new Error("Invalid HTML: could not find <table>");
-	if(mtch.length == 1) {
-		var w = sheet_to_workbook(html_to_sheet(mtch[0], opts), opts);
-		w.bookType = "html";
-		return w;
-	}
-	var wb = book_new();
-	mtch.forEach(function(s, idx) { book_append_sheet(wb, html_to_sheet(s, opts), "Sheet" + (idx+1)); });
-	wb.bookType = "html";
-	return wb;
-}
-
-function make_html_preamble(ws/*:Worksheet*/, R/*:Range*/, o/*:Sheet2HTMLOpts*/)/*:string*/ {
-	var out/*:Array<string>*/ = [];
-	return out.join("") + '<table' + (o && o.id ? ' id="' + o.id + '"' : "") + '>';
-}
-
-function sheet_to_html(ws/*:Worksheet*/, opts/*:?Sheet2HTMLOpts*//*, wb:?Workbook*/)/*:string*/ {
-	var o = opts || {};
-	var header = o.header != null ? o.header : HTML_BEGIN;
-	var footer = o.footer != null ? o.footer : HTML_END;
-	var out/*:Array<string>*/ = [header];
-	var r = decode_range(ws['!ref']);
-	out.push(make_html_preamble(ws, r, o));
-	for(var R = r.s.r; R <= r.e.r; ++R) out.push(make_html_row(ws, r, R, o));
-	out.push("</table>" + footer);
-	return out.join("");
-}
-
-function sheet_add_dom(ws/*:Worksheet*/, table/*:HTMLElement*/, _opts/*:?any*/)/*:Worksheet*/ {
-	var rows/*:HTMLCollection<HTMLTableRowElement>*/ = table.rows;
-	if(!rows) {
-		/* not an HTML TABLE */
-		throw "Unsupported origin when " + table.tagName + " is not a TABLE";
+	var _BEGIN = '<html><head><meta charset="utf-8"/><title>SheetJS Table Export</title></head><body>';
+	var _END = '</body></html>';
+	function sheet_to_html(ws/*:Worksheet*/, opts/*:?Sheet2HTMLOpts*//*, wb:?Workbook*/)/*:string*/ {
+		var o = opts || {};
+		var header = o.header != null ? o.header : _BEGIN;
+		var footer = o.footer != null ? o.footer : _END;
+		var out/*:Array<string>*/ = [header];
+		var r = decode_range(ws['!ref']);
+		o.dense = Array.isArray(ws);
+		out.push(make_html_preamble(ws, r, o));
+		for(var R = r.s.r; R <= r.e.r; ++R) out.push(make_html_row(ws, r, R, o));
+		out.push("</table>" + footer);
+		return out.join("");
 	}

+	return {
+		to_workbook: html_to_book,
+		to_sheet: html_to_sheet,
+		_row: make_html_row,
+		BEGIN: _BEGIN,
+		END: _END,
+		_preamble: make_html_preamble,
+		from_sheet: sheet_to_html
+	};
+})();
+
+function parse_dom_table(table/*:HTMLElement*/, _opts/*:?any*/)/*:Worksheet*/ {
 	var opts = _opts || {};
-	var dense = ws["!data"] != null;
-	var or_R = 0, or_C = 0;
-	if(opts.origin != null) {
-		if(typeof opts.origin == 'number') or_R = opts.origin;
-		else {
-			var _origin/*:CellAddress*/ = typeof opts.origin == "string" ? decode_cell(opts.origin) : opts.origin;
-			or_R = _origin.r; or_C = _origin.c;
-		}
-	}
-
+	if(DENSE != null) opts.dense = DENSE;
+	var ws/*:Worksheet*/ = opts.dense ? ([]/*:any*/) : ({}/*:any*/);
+	var rows/*:HTMLCollection<HTMLTableRowElement>*/ = table.getElementsByTagName('tr');
 	var sheetRows = Math.min(opts.sheetRows||10000000, rows.length);
-	var range/*:Range*/ = {s:{r:0,c:0},e:{r:or_R,c:or_C}};
-	if(ws["!ref"]) {
-		var _range/*:Range*/ = decode_range(ws["!ref"]);
-		range.s.r = Math.min(range.s.r, _range.s.r);
-		range.s.c = Math.min(range.s.c, _range.s.c);
-		range.e.r = Math.max(range.e.r, _range.e.r);
-		range.e.c = Math.max(range.e.c, _range.e.c);
-		if(or_R == -1) range.e.r = or_R = _range.e.r + 1;
-	}
+	var range/*:Range*/ = {s:{r:0,c:0},e:{r:sheetRows - 1,c:0}};
 	var merges/*:Array<Range>*/ = [], midx = 0;
-	var rowinfo/*:Array<RowInfo>*/ = ws["!rows"] || (ws["!rows"] = []);
-	var _R = 0, R = 0, _C = 0, C = 0, RS = 0, CS = 0;
-	if(!ws["!cols"]) ws['!cols'] = [];
-	for(; _R < rows.length && R < sheetRows; ++_R) {
-		var row/*:HTMLTableRowElement*/ = rows[_R];
-		if (is_dom_element_hidden(row)) {
-			if (opts.display) continue;
-			rowinfo[R] = {hidden: true};
-		}
-		var elts/*:HTMLCollection<HTMLTableCellElement>*/ = (row.cells);
+	var R = 0, _C = 0, C = 0, RS = 0, CS = 0;
+	for(; R < sheetRows; ++R) {
+		var row/*:HTMLTableRowElement*/ = rows[R];
+		var elts/*:HTMLCollection<HTMLTableCellElement>*/ = (row.children/*:any*/);
 		for(_C = C = 0; _C < elts.length; ++_C) {
-			var elt/*:HTMLTableCellElement*/ = elts[_C];
-			if (opts.display && is_dom_element_hidden(elt)) continue;
-			var v/*:?string*/ = elt.hasAttribute('data-v') ? elt.getAttribute('data-v') : elt.hasAttribute('v') ? elt.getAttribute('v') : htmldecode(elt.innerHTML);
-			var z/*:?string*/ = elt.getAttribute('data-z') || elt.getAttribute('z');
+			var elt/*:HTMLTableCellElement*/ = elts[_C], v = htmldecode(elts[_C].innerHTML);
 			for(midx = 0; midx < merges.length; ++midx) {
 				var m/*:Range*/ = merges[midx];
-				if(m.s.c == C + or_C && m.s.r < R + or_R && R + or_R <= m.e.r) { C = m.e.c+1 - or_C; midx = -1; }
+				if(m.s.c == C && m.s.r <= R && R <= m.e.r) { C = m.e.c+1; midx = -1; }
 			}
 			/* TODO: figure out how to extract nonstandard mso- style */
 			CS = +elt.getAttribute("colspan") || 1;
-			if( ((RS = (+elt.getAttribute("rowspan") || 1)))>1 || CS>1) merges.push({s:{r:R + or_R,c:C + or_C},e:{r:R + or_R + (RS||1) - 1, c:C + or_C + (CS||1) - 1}});
+			if((RS = +elt.getAttribute("rowspan"))>0 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
 			var o/*:Cell*/ = {t:'s', v:v};
-			var _t/*:string*/ = elt.getAttribute("data-t") || elt.getAttribute("t") || "";
+			var _t/*:string*/ = elt.getAttribute("t") || "";
 			if(v != null) {
 				if(v.length == 0) o.t = _t || 'z';
 				else if(opts.raw || v.trim().length == 0 || _t == "s"){}
@ -188,56 +146,21 @@ function sheet_add_dom(ws/*:Worksheet*/, table/*:HTMLElement*/, _opts/*:?any*/)/
 				else if(!isNaN(fuzzydate(v).getDate())) {
 					o = ({t:'d', v:parseDate(v)}/*:any*/);
 					if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)}/*:any*/);
-					o.z = opts.dateNF || table_fmt[14];
+					o.z = opts.dateNF || SSF._table[14];
 				}
 			}
-			if(o.z === undefined && z != null) o.z = z;
-			/* The first link is used.  Links are assumed to be fully specified.
-			 * TODO: The right way to process relative links is to make a new <a> */
-			var l = "", Aelts = elt.getElementsByTagName("A");
-			if(Aelts && Aelts.length) for(var Aelti = 0; Aelti < Aelts.length; ++Aelti)	if(Aelts[Aelti].hasAttribute("href")) {
-				l = Aelts[Aelti].getAttribute("href"); if(l.charAt(0) != "#") break;
-			}
-			if(l && l.charAt(0) != "#" &&	l.slice(0, 11).toLowerCase() != 'javascript:') o.l = ({ Target: l });
-			if(dense) { if(!ws["!data"][R + or_R]) ws["!data"][R + or_R] = []; ws["!data"][R + or_R][C + or_C] = o; }
-			else ws[encode_cell({c:C + or_C, r:R + or_R})] = o;
-			if(range.e.c < C + or_C) range.e.c = C + or_C;
+			if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
+			else ws[encode_cell({c:C, r:R})] = o;
+			if(range.e.c < C) range.e.c = C;
 			C += CS;
 		}
-		++R;
 	}
-	if(merges.length) ws['!merges'] = (ws["!merges"] || []).concat(merges);
-	range.e.r = Math.max(range.e.r, R - 1 + or_R);
+	if(merges.length) ws['!merges'] = merges;
 	ws['!ref'] = encode_range(range);
-	if(R >= sheetRows) ws['!fullref'] = encode_range((range.e.r = rows.length-_R+R-1 + or_R,range)); // We can count the real number of rows to parse but we don't to improve the performance
+	if(sheetRows < rows.length) ws['!fullref'] = encode_range((range.e.r = rows.length-1,range));
 	return ws;
 }

-function parse_dom_table(table/*:HTMLElement*/, _opts/*:?any*/)/*:Worksheet*/ {
-	var opts = _opts || {};
-	var ws/*:Worksheet*/ = ({}/*:any*/); if(opts.dense) ws["!data"] = [];
-	return sheet_add_dom(ws, table, _opts);
-}
-
 function table_to_book(table/*:HTMLElement*/, opts/*:?any*/)/*:Workbook*/ {
-	var o = sheet_to_workbook(parse_dom_table(table, opts), opts);
-	//o.bookType = "dom"; // TODO: define a type for this
-	return o;
-}
-
-function is_dom_element_hidden(element/*:HTMLElement*/)/*:boolean*/ {
-	var display/*:string*/ = '';
-	var get_computed_style/*:?function*/ = get_get_computed_style_function(element);
-	if(get_computed_style) display = get_computed_style(element).getPropertyValue('display');
-	if(!display) display = element.style && element.style.display;
-	return display === 'none';
-}
-
-/* global getComputedStyle */
-function get_get_computed_style_function(element/*:HTMLElement*/)/*:?function*/ {
-	// The proper getComputedStyle implementation is the one defined in the element window
-	if(element.ownerDocument.defaultView && typeof element.ownerDocument.defaultView.getComputedStyle === 'function') return element.ownerDocument.defaultView.getComputedStyle;
-	// If it is not available, try to get one from the global namespace
-	if(typeof getComputedStyle === 'function') return getComputedStyle;
-	return null;
+	return sheet_to_workbook(parse_dom_table(table, opts), opts);
 }
--- a/bits/80_parseods.js
+++ b/bits/80_parseods.js
@ -1,269 +1,60 @@
 /* OpenDocument */
-function parse_text_p(text/*:string*//*::, tag*/)/*:Array<any>*/ {
+var parse_content_xml = (function() {
+
 	/* 6.1.2 White Space Characters */
-	var fixed = text
-		.replace(/[\t\r\n]/g, " ").trim().replace(/ +/g, " ")
-		.replace(/<text:s\/>/g," ")
-		.replace(/<text:s text:c="(\d+)"\/>/g, function($$,$1) { return Array(parseInt($1,10)+1).join(" "); })
-		.replace(/<text:tab[^>]*\/>/g,"\t")
-		.replace(/<text:line-break\/>/g,"\n");
-	var v = unescapexml(fixed.replace(/<[^>]*>/g,""));
+	var parse_text_p = function(text/*:string*//*::, tag*/)/*:string*/ {
+		return unescapexml(text
+			.replace(/[\t\r\n]/g, " ").trim().replace(/ +/g, " ")
+			.replace(/<text:s\/>/g," ")
+			.replace(/<text:s text:c="(\d+)"\/>/g, function($$,$1) { return Array(parseInt($1,10)+1).join(" "); })
+			.replace(/<text:tab[^>]*\/>/g,"\t")
+			.replace(/<text:line-break\/>/g,"\n")
+			.replace(/<[^>]*>/g,"")
+		);
+	};

-	return [v];
-}
+	var number_formats = {
+		/* ods name: [short ssf fmt, long ssf fmt] */
+		day:           ["d",   "dd"],
+		month:         ["m",   "mm"],
+		year:          ["y",   "yy"],
+		hours:         ["h",   "hh"],
+		minutes:       ["m",   "mm"],
+		seconds:       ["s",   "ss"],
+		"am-pm":       ["A/P", "AM/PM"],
+		"day-of-week": ["ddd", "dddd"],
+		era:           ["e",   "ee"],
+		/* there is no native representation of LO "Q" format */
+		quarter:       ["\\Qm", "m\\\"th quarter\""]
+	};

-/* Note: ODS can stick styles in content.xml or styles.xml, FODS blurs lines */
-function parse_ods_styles(d/*:string*/, _opts, _nfm) {
-	var number_format_map = _nfm || {};
-	var str = xlml_normalize(d);
-	xlmlregex.lastIndex = 0;
-	str = str.replace(/<!--([\s\S]*?)-->/mg,"").replace(/<!DOCTYPE[^\[]*\[[^\]]*\]>/gm,"");
-	var Rn, NFtag, NF = "", tNF = "", y, etpos = 0, tidx = -1, infmt = false, payload = "";
-	while((Rn = xlmlregex.exec(str))) {
-		switch((Rn[3]=Rn[3].replace(/_.*$/,""))) {
-		/* Number Format Definitions */
-		case 'number-style': // <number:number-style> 16.29.2
-		case 'currency-style': // <number:currency-style> 16.29.8
-		case 'percentage-style': // <number:percentage-style> 16.29.10
-		case 'date-style': // <number:date-style> 16.29.11
-		case 'time-style': // <number:time-style> 16.29.19
-		case 'text-style': // <number:text-style> 16.29.26
-			if(Rn[1]==='/') {
-				infmt = false;
-				if(NFtag['truncate-on-overflow'] == "false") {
-					if(NF.match(/h/)) NF = NF.replace(/h+/, "[$&]");
-					else if(NF.match(/m/)) NF = NF.replace(/m+/, "[$&]");
-					else if(NF.match(/s/)) NF = NF.replace(/s+/, "[$&]");
-				}
-				number_format_map[NFtag.name] = NF;
-				NF = "";
-			} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
-				infmt = true;
-				NF = "";
-				NFtag = parsexmltag(Rn[0], false);
-			} break;
-
-		// LibreOffice bug https://bugs.documentfoundation.org/show_bug.cgi?id=149484
-		case 'boolean-style': // <number:boolean-style> 16.29.24
-			if(Rn[1]==='/') {
-				infmt = false;
-				number_format_map[NFtag.name] = "General";
-				NF = "";
-			} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
-				infmt = true;
-				NF = "";
-				NFtag = parsexmltag(Rn[0], false);
-			} break;
-
-		/* Number Format Elements */
-		case 'boolean': // <number:boolean> 16.29.25
-			NF += "General"; // ODF spec is unfortunately underspecified here
-			break;
-
-		case 'text': // <number:text> 16.29.27
-			if(Rn[1]==='/') {
-				payload = str.slice(tidx, xlmlregex.lastIndex - Rn[0].length);
-				// NOTE: Excel has a different interpretation of "%%" and friends
-				if(payload == "%" && NFtag[0] == '<number:percentage-style') NF += "%";
-				else NF += '"' + payload.replace(/"/g, '""') + '"';
-			} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
-				tidx = xlmlregex.lastIndex;
-			} break;
-
-
-		case 'day': { // <number:day> 16.29.12
-			y = parsexmltag(Rn[0], false);
-			switch(y["style"]) {
-				case "short": NF += "d"; break;
-				case "long": NF += "dd"; break;
-				default: NF += "dd"; break; // TODO: error condition
-			}
-		} break;
-
-		case 'day-of-week': { // <number:day-of-week> 16.29.16
-			y = parsexmltag(Rn[0], false);
-			switch(y["style"]) {
-				case "short": NF += "ddd"; break;
-				case "long": NF += "dddd"; break;
-				default: NF += "ddd"; break;
-			}
-		} break;
-
-		case 'era': { // <number:era> 16.29.15 TODO: proper mapping
-			y = parsexmltag(Rn[0], false);
-			switch(y["style"]) {
-				case "short": NF += "ee"; break;
-				case "long": NF += "eeee"; break;
-				default: NF += "eeee"; break; // TODO: error condition
-			}
-		} break;
-
-		case 'hours': { // <number:hours> 16.29.20
-			y = parsexmltag(Rn[0], false);
-			switch(y["style"]) {
-				case "short": NF += "h"; break;
-				case "long": NF += "hh"; break;
-				default: NF += "hh"; break; // TODO: error condition
-			}
-		} break;
-
-		case 'minutes': { // <number:minutes> 16.29.21
-			y = parsexmltag(Rn[0], false);
-			switch(y["style"]) {
-				case "short": NF += "m"; break;
-				case "long": NF += "mm"; break;
-				default: NF += "mm"; break; // TODO: error condition
-			}
-		} break;
-
-		case 'month': { // <number:month> 16.29.13
-			y = parsexmltag(Rn[0], false);
-			if(y["textual"]) NF += "mm";
-			switch(y["style"]) {
-				case "short": NF += "m"; break;
-				case "long": NF += "mm"; break;
-				default: NF += "m"; break;
-			}
-		} break;
-
-		case 'seconds': { // <number:seconds> 16.29.22
-			y = parsexmltag(Rn[0], false);
-			switch(y["style"]) {
-				case "short": NF += "s"; break;
-				case "long": NF += "ss"; break;
-				default: NF += "ss"; break; // TODO: error condition
-			}
-			if(y["decimal-places"]) NF += "." + fill("0", +y["decimal-places"]);
-		} break;
-
-		case 'year': { // <number:year> 16.29.14
-			y = parsexmltag(Rn[0], false);
-			switch(y["style"]) {
-				case "short": NF += "yy"; break;
-				case "long": NF += "yyyy"; break;
-				default: NF += "yy"; break; // TODO: error condition
-			}
-		} break;
-
-		case 'am-pm': // <number:am-pm> 16.29.23
-			NF += "AM/PM"; // LO autocorrects A/P -> AM/PM
-			break;
-
-		case 'week-of-year': // <number:week-of-year> 16.29.17
-		case 'quarter': // <number:quarter> 16.29.18
-			console.error("Excel does not support ODS format token " + Rn[3]);
-			break;
-
-		case 'fill-character': // <number:fill-character> 16.29.5
-			if(Rn[1]==='/') {
-				payload = str.slice(tidx, xlmlregex.lastIndex - Rn[0].length);
-				// NOTE: Excel has a different interpretation of "%%" and friends
-				NF += '"' + payload.replace(/"/g, '""') + '"*';
-			} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
-				tidx = xlmlregex.lastIndex;
-			} break;
-
-		case 'scientific-number': // <number:scientific-number> 16.29.6
-			// TODO: find a mapping for all parameters
-			y = parsexmltag(Rn[0], false);
-			NF += "0." + fill("0", +y["min-decimal-places"] || +y["decimal-places"] || 2) + fill("?", +y["decimal-places"] - +y["min-decimal-places"] || 0) + "E" + (parsexmlbool(y["forced-exponent-sign"]) ? "+" : "") + fill("0", +y["min-exponent-digits"] || 2);
-			break;
-
-		case 'fraction': // <number:fraction> 16.29.7
-			// TODO: find a mapping for all parameters
-			y = parsexmltag(Rn[0], false);
-			if(!+y["min-integer-digits"]) NF += "#";
-			else NF += fill("0", +y["min-integer-digits"]);
-			NF += " ";
-			NF += fill("?", +y["min-numerator-digits"] || 1);
-			NF += "/";
-			if(+y["denominator-value"]) NF += y["denominator-value"];
-			else NF += fill("?", +y["min-denominator-digits"] || 1);
-			break;
-
-		case 'currency-symbol': // <number:currency-symbol> 16.29.9
-			// TODO: localization with [$-...]
-			if(Rn[1]==='/') {
-				NF += '"' + str.slice(tidx, xlmlregex.lastIndex - Rn[0].length).replace(/"/g, '""') + '"';
-			} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
-				tidx = xlmlregex.lastIndex;
-			} else NF += "$";
-			break;
-
-		case 'text-properties': // <style:text-properties> 16.29.29
-			y = parsexmltag(Rn[0], false);
-			switch((y["color"]||"").toLowerCase().replace("#", "")) {
-				case "ff0000": case "red": NF = "[Red]" + NF; break;
-			}
-			break;
-
-		case 'text-content': // <number:text-content> 16.29.28
-			NF += "@";
-			break;
-
-		case 'map': // <style:map> 16.3
-			// TODO: handle more complex maps
-			y = parsexmltag(Rn[0], false);
-			if(unescapexml(y["condition"]) == "value()>=0") NF = number_format_map[y["apply-style-name"]] + ";" + NF;
-			else console.error("ODS number format may be incorrect: " + y["condition"]);
-			break;
-
-		case 'number': // <number:number> 16.29.3
-			// TODO: handle all the attributes
-			if(Rn[1]==='/') break;
-			y = parsexmltag(Rn[0], false);
-			tNF = "";
-			tNF += fill("0", +y["min-integer-digits"] || 1);
-			if(parsexmlbool(y["grouping"])) tNF = commaify(fill("#", Math.max(0, 4 - tNF.length)) + tNF);
-			if(+y["min-decimal-places"] || +y["decimal-places"]) tNF += ".";
-			if(+y["min-decimal-places"]) tNF += fill("0", +y["min-decimal-places"] || 1);
-			if(+y["decimal-places"] - (+y["min-decimal-places"]||0)) tNF += fill("0", +y["decimal-places"] - (+y["min-decimal-places"]||0)); // TODO: should this be "#" ?
-			NF += tNF;
-			break;
-
-		case 'embedded-text': // <number:embedded-text> 16.29.4
-			// TODO: verify interplay with grouping et al
-			if(Rn[1]==='/') {
-				if(etpos == 0) NF += '"' + str.slice(tidx, xlmlregex.lastIndex - Rn[0].length).replace(/"/g, '""') + '"';
-				else NF = NF.slice(0, etpos) + '"' + str.slice(tidx, xlmlregex.lastIndex - Rn[0].length).replace(/"/g, '""') + '"' + NF.slice(etpos);
-			} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
-				tidx = xlmlregex.lastIndex;
-				etpos = -+parsexmltag(Rn[0], false)["position"] || 0;
-			} break;
-
-	}}
-	return number_format_map;
-}
-
-function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
+	return function pcx(d/*:string*/, _opts)/*:Workbook*/ {
 		var opts = _opts || {};
 		if(DENSE != null && opts.dense == null) opts.dense = DENSE;
 		var str = xlml_normalize(d);
 		var state/*:Array<any>*/ = [], tmp;
 		var tag/*:: = {}*/;
-		var nfidx, NF = "", pidx = 0;
+		var NFtag = {name:""}, NF = "", pidx = 0;
 		var sheetag/*:: = {name:"", '名称':""}*/;
 		var rowtag/*:: = {'行号':""}*/;
 		var Sheets = {}, SheetNames/*:Array<string>*/ = [];
-		var ws = ({}/*:any*/); if(opts.dense) ws["!data"] = [];
+		var ws = opts.dense ? ([]/*:any*/) : ({}/*:any*/);
 		var Rn, q/*:: :any = ({t:"", v:null, z:null, w:"",c:[],}:any)*/;
 		var ctag = ({value:""}/*:any*/);
 		var textp = "", textpidx = 0, textptag/*:: = {}*/;
-		var textR = [];
 		var R = -1, C = -1, range = {s: {r:1000000,c:10000000}, e: {r:0, c:0}};
 		var row_ol = 0;
-		var number_format_map = _nfm || {}, styles = {};
+		var number_format_map = {};
 		var merges/*:Array<Range>*/ = [], mrange = {}, mR = 0, mC = 0;
 		var rowinfo/*:Array<RowInfo>*/ = [], rowpeat = 1, colpeat = 1;
 		var arrayf/*:Array<[Range, string]>*/ = [];
-		var WB = {Names:[], WBProps:{}};
+		var WB = {Names:[]};
 		var atag = ({}/*:any*/);
 		var _Ref/*:[string, string]*/ = ["", ""];
 		var comments/*:Array<Comment>*/ = [], comment/*:Comment*/ = ({}/*:any*/);
 		var creator = "", creatoridx = 0;
 		var isstub = false, intable = false;
 		var i = 0;
-		var baddate = 0;
 		xlmlregex.lastIndex = 0;
 		str = str.replace(/<!--([\s\S]*?)-->/mg,"").replace(/<!DOCTYPE[^\[]*\[[^\]]*\]>/gm,"");
 		while((Rn = xlmlregex.exec(str))) switch((Rn[3]=Rn[3].replace(/_.*$/,""))) {
@ -271,7 +62,6 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			case 'table': case '工作表': // 9.1.2 <table:table>
 				if(Rn[1]==='/') {
 					if(range.e.c >= range.s.c && range.e.r >= range.s.r) ws['!ref'] = encode_range(range);
-					else ws['!ref'] = "A1:A1";
 					if(opts.sheetRows > 0 && opts.sheetRows <= range.e.r) {
 						ws['!fullref'] = ws['!ref'];
 						range.e.r = opts.sheetRows - 1;
@ -279,7 +69,7 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 					}
 					if(merges.length) ws['!merges'] = merges;
 					if(rowinfo.length) ws["!rows"] = rowinfo;
-					sheetag.name = sheetag['名称'] || sheetag.name;
+					sheetag.name = utf8read(sheetag['名称'] || sheetag.name);
 					if(typeof JSON !== 'undefined') JSON.stringify(sheetag);
 					SheetNames.push(sheetag.name);
 					Sheets[sheetag.name] = ws;
@ -289,7 +79,7 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 					sheetag = parsexmltag(Rn[0], false);
 					R = C = -1;
 					range.s.r = range.s.c = 10000000; range.e.r = range.e.c = 0;
-					ws = ({}/*:any*/); if(opts.dense) ws["!data"] = []; merges = [];
+					ws = opts.dense ? ([]/*:any*/) : ({}/*:any*/); merges = [];
 					rowinfo = [];
 					intable = true;
 				}
@ -307,12 +97,11 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 				if(rowpeat < 10) for(i = 0; i < rowpeat; ++i) if(row_ol > 0) rowinfo[R + i] = {level: row_ol};
 				C = -1; break;
 			case 'covered-table-cell': // 9.1.5 <table:covered-table-cell>
-				if(Rn[1] !== '/') ++C;
+				++C;
 				if(opts.sheetStubs) {
-					if(opts.dense) { if(!ws["!data"][R]) ws["!data"][R] = []; ws["!data"][R][C] = {t:'z'}; }
+					if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = {t:'z'}; }
 					else ws[encode_cell({r:R,c:C})] = {t:'z'};
 				}
-				textp = ""; textR = [];
 				break; /* stub */
 			case 'table-cell': case '数据':
 				if(Rn[0].charAt(Rn[0].length-2) === '/') {
@ -321,20 +110,18 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 					colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
 					q = ({t:'z', v:null/*:: , z:null, w:"",c:[]*/}/*:any*/);
 					if(ctag.formula && opts.cellFormula != false) q.f = ods_to_csf_formula(unescapexml(ctag.formula));
-					if(ctag["style-name"] && styles[ctag["style-name"]]) q.z = styles[ctag["style-name"]];
 					if((ctag['数据类型'] || ctag['value-type']) == "string") {
 						q.t = "s"; q.v = unescapexml(ctag['string-value'] || "");
 						if(opts.dense) {
-							if(!ws["!data"][R]) ws["!data"][R] = [];
-							ws["!data"][R][C] = q;
+							if(!ws[R]) ws[R] = [];
+							ws[R][C] = q;
 						} else {
-							ws[encode_col(C) + encode_row(R)] = q;
+							ws[encode_cell({r:R,c:C})] = q;
 						}
 					}
 					C+= colpeat-1;
 				} else if(Rn[1]!=='/') {
 					++C;
-					textp = ""; textpidx = 0; textR = [];
 					colpeat = 1;
 					var rptR = rowpeat ? R + rowpeat - 1 : R;
 					if(C > range.e.c) range.e.c = C;
@ -344,7 +131,6 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 					ctag = parsexmltag(Rn[0], false);
 					comments = []; comment = ({}/*:any*/);
 					q = ({t:ctag['数据类型'] || ctag['value-type'], v:null/*:: , z:null, w:"",c:[]*/}/*:any*/);
-					if(ctag["style-name"] && styles[ctag["style-name"]]) q.z = styles[ctag["style-name"]];
 					if(opts.cellFormula) {
 						if(ctag.formula) ctag.formula = unescapexml(ctag.formula);
 						if(ctag['number-matrix-columns-spanned'] && ctag['number-matrix-rows-spanned']) {
@ -372,42 +158,38 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {

 					/* 19.385 office:value-type */
 					switch(q.t) {
-						case 'boolean': q.t = 'b'; q.v = parsexmlbool(ctag['boolean-value']) || (+ctag['boolean-value'] >= 1); break;
+						case 'boolean': q.t = 'b'; q.v = parsexmlbool(ctag['boolean-value']); break;
 						case 'float': q.t = 'n'; q.v = parseFloat(ctag.value); break;
 						case 'percentage': q.t = 'n'; q.v = parseFloat(ctag.value); break;
 						case 'currency': q.t = 'n'; q.v = parseFloat(ctag.value); break;
 						case 'date': q.t = 'd'; q.v = parseDate(ctag['date-value']);
-							if(!opts.cellDates) { q.t = 'n'; q.v = datenum(q.v, WB.WBProps.date1904) - baddate; }
-							if(!q.z) q.z = 'm/d/yy'; break;
-						case 'time': q.t = 'n'; q.v = parse_isodur(ctag['time-value'])/86400;
-							if(opts.cellDates) { q.t = 'd'; q.v = numdate(q.v); }
-							if(!q.z) q.z = 'HH:MM:SS'; break;
+							if(!opts.cellDates) { q.t = 'n'; q.v = datenum(q.v); }
+							q.z = 'm/d/yy'; break;
+						case 'time': q.t = 'n'; q.v = parse_isodur(ctag['time-value'])/86400; break;
 						case 'number': q.t = 'n'; q.v = parseFloat(ctag['数据数值']); break;
 						default:
 							if(q.t === 'string' || q.t === 'text' || !q.t) {
 								q.t = 's';
-								if(ctag['string-value'] != null) { textp = unescapexml(ctag['string-value']); textR = []; }
+								if(ctag['string-value'] != null) textp = unescapexml(ctag['string-value']);
 							} else throw new Error('Unsupported value type ' + q.t);
 					}
 				} else {
 					isstub = false;
 					if(q.t === 's') {
 						q.v = textp || '';
-						if(textR.length) q.R = textR;
 						isstub = textpidx == 0;
 					}
 					if(atag.Target) q.l = atag;
 					if(comments.length > 0) { q.c = comments; comments = []; }
 					if(textp && opts.cellText !== false) q.w = textp;
-					if(isstub) { q.t = "z"; delete q.v; }
 					if(!isstub || opts.sheetStubs) {
 						if(!(opts.sheetRows && opts.sheetRows <= R)) {
 							for(var rpt = 0; rpt < rowpeat; ++rpt) {
 								colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
 								if(opts.dense) {
-									if(!ws["!data"][R + rpt]) ws["!data"][R + rpt] = [];
-									ws["!data"][R + rpt][C] = rpt == 0 ? q : dup(q);
-									while(--colpeat > 0) ws["!data"][R + rpt][C + colpeat] = dup(q);
+									if(!ws[R + rpt]) ws[R + rpt] = [];
+									ws[R + rpt][C] = rpt == 0 ? q : dup(q);
+									while(--colpeat > 0) ws[R + rpt][C + colpeat] = dup(q);
 								} else {
 									ws[encode_cell({r:R + rpt,c:C})] = q;
 									while(--colpeat > 0) ws[encode_cell({r:R + rpt,c:C + colpeat})] = dup(q);
@ -419,7 +201,7 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 					colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
 					C += colpeat-1; colpeat = 0;
 					q = {/*:: t:"", v:null, z:null, w:"",c:[]*/};
-					textp = ""; textR = [];
+					textp = "";
 				}
 				atag = ({}/*:any*/);
 				break; // 9.1.4 <table:table-cell>
@ -431,7 +213,6 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			case 'scripts': // 3.12 <office:scripts>
 			case 'styles': // TODO <office:styles>
 			case 'font-face-decls': // 3.14 <office:font-face-decls>
-			case 'master-styles': // 3.15.4 <office:master-styles> -- relevant for FODS
 				if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
 				else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], true]);
 				break;
@ -440,13 +221,12 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 				if(Rn[1]==='/'){
 					if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
 					comment.t = textp;
-					if(textR.length) /*::(*/comment/*:: :any)*/.R = textR;
 					comment.a = creator;
 					comments.push(comment);
 				}
 				else if(Rn[0].charAt(Rn[0].length-2) !== '/') {state.push([Rn[3], false]);}
 				creator = ""; creatoridx = 0;
-				textp = ""; textpidx = 0; textR = [];
+				textp = ""; textpidx = 0;
 				break;

 			case 'creator': // 4.3.2.7 <dc:creator>
@ -473,39 +253,36 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			case 'chart': // TODO
 				if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
 				else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], false]);
-				textp = ""; textpidx = 0; textR = [];
+				textp = ""; textpidx = 0;
 				break;

-			case 'scientific-number': // <number:scientific-number>
-			case 'currency-symbol': // <number:currency-symbol>
-			case 'fill-character': // 16.29.5 <number:fill-character>
+			case 'scientific-number': // TODO: <number:scientific-number>
+				break;
+			case 'currency-symbol': // TODO: <number:currency-symbol>
+				break;
+			case 'currency-style': // TODO: <number:currency-style>
 				break;
-
-			case 'text-style': // 16.27.25 <number:text-style>
-			case 'boolean-style': // 16.27.23 <number:boolean-style>
 			case 'number-style': // 16.27.2 <number:number-style>
-			case 'currency-style': // 16.29.8 <number:currency-style>
 			case 'percentage-style': // 16.27.9 <number:percentage-style>
 			case 'date-style': // 16.27.10 <number:date-style>
 			case 'time-style': // 16.27.18 <number:time-style>
 				if(Rn[1]==='/'){
-					var xlmlidx = xlmlregex.lastIndex;
-					parse_ods_styles(str.slice(nfidx, xlmlregex.lastIndex), _opts, number_format_map);
-					xlmlregex.lastIndex = xlmlidx;
+					number_format_map[NFtag.name] = NF;
+					if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
 				} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
-					nfidx = xlmlregex.lastIndex - Rn[0].length;
+					NF = "";
+					NFtag = parsexmltag(Rn[0], false);
+					state.push([Rn[3], true]);
 				} break;

 			case 'script': break; // 3.13 <office:script>
 			case 'libraries': break; // TODO: <ooo:libraries>
 			case 'automatic-styles': break; // 3.15.3 <office:automatic-styles>
+			case 'master-styles': break; // TODO: <office:master-styles>

 			case 'default-style': // TODO: <style:default-style>
 			case 'page-layout': break; // TODO: <style:page-layout>
-			case 'style': { // 16.2 <style:style>
-				var styletag = parsexmltag(Rn[0], false);
-				if(styletag["family"] == "table-cell" && number_format_map[styletag["data-style-name"]]) styles[styletag["name"]] = number_format_map[styletag["data-style-name"]];
-			} break;
+			case 'style': break; // 16.2 <style:style>
 			case 'map': break; // 16.3 <style:map>
 			case 'font-face': break; // 16.21 <style:font-face>

@ -516,7 +293,12 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			case 'table-cell-properties': break; // 17.18 <style:table-cell-properties>

 			case 'number': // 16.27.3 <number:number>
-				break;
+				switch(state[state.length-1][0]) {
+					case 'time-style':
+					case 'date-style':
+						tag = parsexmltag(Rn[0], false);
+						NF += number_formats[Rn[3]][tag.style==='long'?1:0]; break;
+				} break;

 			case 'fraction': break; // TODO 16.27.6 <number:fraction>

@ -531,9 +313,16 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			case 'minutes': // 16.27.20 <number:minutes>
 			case 'seconds': // 16.27.21 <number:seconds>
 			case 'am-pm': // 16.27.22 <number:am-pm>
-				break;
+				switch(state[state.length-1][0]) {
+					case 'time-style':
+					case 'date-style':
+						tag = parsexmltag(Rn[0], false);
+						NF += number_formats[Rn[3]][tag.style==='long'?1:0]; break;
+				} break;

+			case 'boolean-style': break; // 16.27.23 <number:boolean-style>
 			case 'boolean': break; // 16.27.24 <number:boolean>
+			case 'text-style': break; // 16.27.25 <number:text-style>
 			case 'text': // 16.27.26 <number:text>
 				if(Rn[0].slice(-2) === "/>") break;
 				else if(Rn[1]==="/") switch(state[state.length-1][0]) {
@ -569,14 +358,7 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			case 'table-header-columns': break; // 9.1.11 <table:table-header-columns>
 			case 'table-columns': break; // 9.1.12 <table:table-columns>

-			case 'null-date': // 9.4.2 <table:null-date>
-				tag = parsexmltag(Rn[0], false);
-				switch(tag["date-value"]) {
-					case "1904-01-01": WB.WBProps.date1904 = true;
-					/* falls through */
-					case "1900-01-01": baddate = 0;
-				}
-				break;
+			case 'null-date': break; // 9.4.2 <table:null-date> TODO: date1904

 			case 'graphic-properties': break; // 17.21 <style:graphic-properties>
 			case 'calculation-settings': break; // 9.4.1 <table:calculation-settings>
@ -592,11 +374,8 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			case 'line-break': break; // 6.1.5 <text:line-break>
 			case 'span': break; // 6.1.7 <text:span>
 			case 'p': case '文本串': // 5.1.3 <text:p>
-				if(['master-styles'].indexOf(state[state.length-1][0]) > -1) break;
-				if(Rn[1]==='/' && (!ctag || !ctag['string-value'])) {
-					var ptp = parse_text_p(str.slice(textpidx,Rn.index), textptag);
-					textp = (textp.length > 0 ? textp + "\n" : "") + ptp[0];
-				} else { textptag = parsexmltag(Rn[0], false); textpidx = Rn.index + Rn[0].length; }
+				if(Rn[1]==='/' && (!ctag || !ctag['string-value'])) textp = (textp.length > 0 ? textp + "\n" : "") + parse_text_p(str.slice(textpidx,Rn.index), textptag);
+				else { textptag = parsexmltag(Rn[0], false); textpidx = Rn.index + Rn[0].length; }
 				break; // <text:p>
 			case 's': break; // <text:s>

@ -723,11 +502,11 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 				if(Rn[1]!== '/') {
 					atag = parsexmltag(Rn[0], false);
 					if(!atag.href) break;
-					atag.Target = unescapexml(atag.href); delete atag.href;
+					atag.Target = atag.href; delete atag.href;
 					if(atag.Target.charAt(0) == "#" && atag.Target.indexOf(".") > -1) {
 						_Ref = ods_to_csf_3D(atag.Target.slice(1));
 						atag.Target = "#" + _Ref[0] + "!" + _Ref[1];
-					} else if(atag.Target.match(/^\.\.[\\\/]/)) atag.Target = atag.Target.slice(3);
+					}
 				}
 				break;

@ -757,25 +536,22 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			SheetNames: SheetNames,
 			Workbook: WB
 		}/*:any*/);
-		if(opts.bookSheets) delete /*::(*/out/*:: :any)*/.Sheets;
+		if(opts.bookSheets) delete out.Sheets;
 		return out;
-}
+	};
+})();

 function parse_ods(zip/*:ZIPFile*/, opts/*:?ParseOpts*/)/*:Workbook*/ {
 	opts = opts || ({}/*:any*/);
-	if(safegetzipfile(zip, 'META-INF/manifest.xml')) parse_manifest(getzipdata(zip, 'META-INF/manifest.xml'), opts);
-	var styles = getzipstr(zip, 'styles.xml');
-	var Styles = styles && parse_ods_styles(utf8read(styles), opts);
+	var ods = !!safegetzipfile(zip, 'objectdata');
+	if(ods) parse_manifest(getzipdata(zip, 'META-INF/manifest.xml'), opts);
 	var content = getzipstr(zip, 'content.xml');
-	if(!content) throw new Error("Missing content.xml in ODS / UOF file");
-	var wb = parse_content_xml(utf8read(content), opts, Styles);
+	if(!content) throw new Error("Missing content.xml in " + (ods ? "ODS" : "UOF")+ " file");
+	var wb = parse_content_xml(ods ? content : utf8read(content), opts);
 	if(safegetzipfile(zip, 'meta.xml')) wb.Props = parse_core_props(getzipdata(zip, 'meta.xml'));
-	wb.bookType = "ods";
 	return wb;
 }
 function parse_fods(data/*:string*/, opts/*:?ParseOpts*/)/*:Workbook*/ {
-	var wb = parse_content_xml(data, opts);
-	wb.bookType = "fods";
-	return wb;
+	return parse_content_xml(data, opts);
 }

--- a/bits/81_writeods.js
+++ b/bits/81_writeods.js
@ -1,16 +1,5 @@
 /* OpenDocument */
-var write_styles_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function() {
-	var master_styles = [
-		'<office:master-styles>',
-			'<style:master-page style:name="mp1" style:page-layout-name="mp1">',
-				'<style:header/>',
-				'<style:header-left style:display="false"/>',
-				'<style:footer/>',
-				'<style:footer-left style:display="false"/>',
-			'</style:master-page>',
-		'</office:master-styles>'
-	].join("");
-
+var write_styles_ods/*:{(wb:any, opts:any):string}*/ = (function() {
 	var payload = '<office:document-styles ' + wxt_helper({
 		'xmlns:office':   "urn:oasis:names:tc:opendocument:xmlns:office:1.0",
 		'xmlns:table':    "urn:oasis:names:tc:opendocument:xmlns:table:1.0",
@ -24,205 +13,33 @@ var write_styles_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function(
 		'xmlns:svg':      "urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0",
 		'xmlns:of':       "urn:oasis:names:tc:opendocument:xmlns:of:1.2",
 		'office:version': "1.2"
-	}) + '>' + master_styles + '</office:document-styles>';
-
+	}) + '></office:document-styles>';
 	return function wso(/*::wb, opts*/) {
 		return XML_HEADER + payload;
 	};
 })();
-
-// TODO: find out if anyone actually read the spec.  LO has some wild errors
-function write_number_format_ods(nf/*:string*/, nfidx/*:string*/)/*:string*/ {
-	var type = "number", payload = "", nopts = { "style:name": nfidx }, c = "", i = 0;
-	nf = nf.replace(/"[$]"/g, "$");
-	/* TODO: replace with an actual parser based on a real grammar */
-	j: {
-		// TODO: support style maps
-		if(nf.indexOf(";") > -1) {
-			console.error("Unsupported ODS Style Map exported.  Using first branch of " + nf);
-			nf = nf.slice(0, nf.indexOf(";"));
-		}
-
-		if(nf == "@") { type = "text"; payload = "<number:text-content/>"; break j; }
-
-		/* currency flag */
-		if(nf.indexOf(/\$/) > -1) { type = "currency"; }
-
-		/* opening string literal */
-		if(nf[i] == '"') {
-			c = "";
-			while(nf[++i] != '"' || nf[++i] == '"') c += nf[i]; --i;
-			if(nf[i+1] == "*") {
-				i++;
-				payload += '<number:fill-character>' + escapexml(c.replace(/""/g, '"')) + '</number:fill-character>';
-			} else {
-				payload += '<number:text>' + escapexml(c.replace(/""/g, '"')) + '</number:text>';
-			}
-			nf = nf.slice(i+1); i = 0;
-		}
-
-		/* fractions */
-		var t = nf.match(/# (\?+)\/(\?+)/);
-		if(t) { payload += writextag("number:fraction", null, {"number:min-integer-digits":0, "number:min-numerator-digits": t[1].length, "number:max-denominator-value": Math.max(+(t[1].replace(/./g, "9")), +(t[2].replace(/./g, "9"))) }); break j; }
-		if((t=nf.match(/# (\?+)\/(\d+)/))) { payload += writextag("number:fraction", null, {"number:min-integer-digits":0, "number:min-numerator-digits": t[1].length, "number:denominator-value": +t[2]}); break j; }
-
-		/* percentages */
-		if((t=nf.match(/(\d+)(|\.\d+)%/))) { type = "percentage"; payload += writextag("number:number", null, {"number:decimal-places": t[2] && t.length - 1 || 0, "number:min-decimal-places": t[2] && t.length - 1 || 0, "number:min-integer-digits": t[1].length }) + "<number:text>%</number:text>"; break j; }
-
-		/* datetime */
-		var has_time = false;
-		if(["y","m","d"].indexOf(nf[0]) > -1) {
-			type = "date";
-			k: for(; i < nf.length; ++i) switch((c = nf[i].toLowerCase())) {
-				case "h": case "s": has_time = true; --i; break k;
-				case "m":
-					l: for(var h = i+1; h < nf.length; ++h) switch(nf[h]) {
-						case "y": case "d": break l;
-						case "h": case "s": has_time = true; --i; break k;
-					}
-					/* falls through */
-				case "y": case "d":
-					while((nf[++i]||"").toLowerCase() == c[0]) c += c[0]; --i;
-					switch(c) {
-						case "y": case "yy": payload += "<number:year/>"; break;
-						case "yyy": case "yyyy": payload += '<number:year number:style="long"/>'; break;
-						case "mmmmm": console.error("ODS has no equivalent of format |mmmmm|");
-							/* falls through */
-						case "m": case "mm": case "mmm": case "mmmm":
-							payload += '<number:month number:style="' + (c.length % 2 ? "short" : "long") + '" number:textual="' + (c.length >= 3 ? "true" : "false") + '"/>';
-							break;
-						case "d": case "dd": payload += '<number:day number:style="' + (c.length % 2 ? "short" : "long") + '"/>'; break;
-						case "ddd": case "dddd": payload += '<number:day-of-week number:style="' + (c.length % 2 ? "short" : "long") + '"/>'; break;
-					}
-					break;
-				case '"':
-					while(nf[++i] != '"' || nf[++i] == '"') c += nf[i]; --i;
-					payload += '<number:text>' + escapexml(c.slice(1).replace(/""/g, '"')) + '</number:text>';
-					break;
-				case '/': payload += '<number:text>' + escapexml(c) + '</number:text>'; break;
-				default: console.error("unrecognized character " + c + " in ODF format " + nf);
-			}
-			if(!has_time) break j;
-			nf = nf.slice(i+1); i = 0;
-		}
-		if(nf.match(/^\[?[hms]/)) {
-			if(type == "number") type = "time";
-			if(nf.match(/\[/)) {
-				nf = nf.replace(/[\[\]]/g, "");
-				nopts['number:truncate-on-overflow'] = "false";
-			}
-			for(; i < nf.length; ++i) switch((c = nf[i].toLowerCase())) {
-				case "h": case "m": case "s":
-					while((nf[++i]||"").toLowerCase() == c[0]) c += c[0]; --i;
-					switch(c) {
-						case "h": case "hh": payload += '<number:hours number:style="' + (c.length % 2 ? "short" : "long") + '"/>'; break;
-						case "m": case "mm": payload += '<number:minutes number:style="' + (c.length % 2 ? "short" : "long") + '"/>'; break;
-						case "s": case "ss":
-							if(nf[i+1] == ".") do { c += nf[i+1]; ++i; } while(nf[i+1] == "0");
-							payload += '<number:seconds number:style="' + (c.match("ss") ? "long" : "short") + '"' + (c.match(/\./) ? ' number:decimal-places="' + (c.match(/0+/)||[""])[0].length + '"' : "")+ '/>'; break;
-					}
-					break;
-				case '"':
-					while(nf[++i] != '"' || nf[++i] == '"') c += nf[i]; --i;
-					payload += '<number:text>' + escapexml(c.slice(1).replace(/""/g, '"')) + '</number:text>';
-					break;
-				case '/': payload += '<number:text>' + escapexml(c) + '</number:text>'; break;
-				case "a":
-					if(nf.slice(i, i+3).toLowerCase() == "a/p") { payload += '<number:am-pm/>'; i += 2; break; } // Note: ODF does not support A/P
-					if(nf.slice(i, i+5).toLowerCase() == "am/pm")  { payload += '<number:am-pm/>'; i += 4; break; }
-					/* falls through */
-				default: console.error("unrecognized character " + c + " in ODF format " + nf);
-			}
-			break j;
-		}
-
-		/* currency flag */
-		if(nf.indexOf(/\$/) > -1) { type = "currency"; }
-
-		/* should be in a char loop */
-		if(nf[0] == "$") { payload += '<number:currency-symbol number:language="en" number:country="US">$</number:currency-symbol>'; nf = nf.slice(1); i = 0; }
-		i = 0; if(nf[i] == '"') {
-			while(nf[++i] != '"' || nf[++i] == '"') c += nf[i]; --i;
-			if(nf[i+1] == "*") {
-				i++;
-				payload += '<number:fill-character>' + escapexml(c.replace(/""/g, '"')) + '</number:fill-character>';
-			} else {
-				payload += '<number:text>' + escapexml(c.replace(/""/g, '"')) + '</number:text>';
-			}
-			nf = nf.slice(i+1); i = 0;
-		}
-
-		/* number TODO: interstitial text e.g. 000)000-0000 */
-		var np = nf.match(/([#0][0#,]*)(\.[0#]*|)(E[+]?0*|)/i);
-		if(!np || !np[0]) console.error("Could not find numeric part of " + nf);
-		else {
-			var base = np[1].replace(/,/g, "");
-			payload += '<number:' + (np[3] ? "scientific-" : "")+ 'number' +
-				' number:min-integer-digits="' + (base.indexOf("0") == -1 ? "0" : base.length - base.indexOf("0")) + '"' +
-				(np[0].indexOf(",") > -1 ? ' number:grouping="true"' : "") +
-				(np[2] && ' number:decimal-places="' + (np[2].length - 1) + '"' || ' number:decimal-places="0"') +
-				(np[3] && np[3].indexOf("+") > -1 ? ' number:forced-exponent-sign="true"' : "" ) +
-				(np[3] ? ' number:min-exponent-digits="' + np[3].match(/0+/)[0].length + '"' : "" ) +
-				'>' +
-				/* TODO: interstitial text placeholders */
-				'</number:' + (np[3] ? "scientific-" : "") + 'number>';
-			i = np.index + np[0].length;
-		}
-
-		/* residual text */
-		if(nf[i] == '"') {
-			c = "";
-			while(nf[++i] != '"' || nf[++i] == '"') c += nf[i]; --i;
-			payload += '<number:text>' + escapexml(c.replace(/""/g, '"')) + '</number:text>';
-		}
-	}
-
-	if(!payload) { console.error("Could not generate ODS number format for |" + nf + "|"); return ""; }
-	return writextag("number:" + type + "-style", payload, nopts);
-}
-
-function write_names_ods(Names, SheetNames, idx) {
-	var scoped = Names.filter(function(name) { return name.Sheet == (idx == -1 ? null : idx); });
-	if(!scoped.length) return "";
-	return "      <table:named-expressions>\n" + scoped.map(function(name) {
-		var odsref =  csf_to_ods_3D(name.Ref);
-		return "        " + writextag("table:named-range", null, {
-			"table:name": name.Name,
-			"table:cell-range-address": odsref,
-			"table:base-cell-address": odsref.replace(/[\.]?[^\.]*$/, ".$A$1")
-		});
-	}).join("\n") + "\n      </table:named-expressions>\n";
-}
-var write_content_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function() {
+var write_content_ods/*:{(wb:any, opts:any):string}*/ = (function() {
 	/* 6.1.2 White Space Characters */
 	var write_text_p = function(text/*:string*/)/*:string*/ {
 		return escapexml(text)
 			.replace(/  +/g, function($$){return '<text:s text:c="'+$$.length+'"/>';})
 			.replace(/\t/g, "<text:tab/>")
-			.replace(/\n/g, "</text:p><text:p>")
+			.replace(/\n/g, "<text:line-break/>")
 			.replace(/^ /, "<text:s/>").replace(/ $/, "<text:s/>");
 	};

 	var null_cell_xml = '          <table:table-cell />\n';
 	var covered_cell_xml = '          <table:covered-table-cell/>\n';
-	var write_ws = function(ws, wb/*:Workbook*/, i/*:number*/, opts, nfs)/*:string*/ {
+	var write_ws = function(ws, wb/*:Workbook*/, i/*:number*//*::, opts*/)/*:string*/ {
 		/* Section 9 Tables */
 		var o/*:Array<string>*/ = [];
-		o.push('      <table:table table:name="' + escapexml(wb.SheetNames[i]) + '" table:style-name="ta1">\n');
-		var R=0,C=0, range = decode_range(ws['!ref']||"A1");
+		o.push('      <table:table table:name="' + escapexml(wb.SheetNames[i]) + '">\n');
+		var R=0,C=0, range = decode_range(ws['!ref']);
 		var marr/*:Array<Range>*/ = ws['!merges'] || [], mi = 0;
-		var dense = ws["!data"] != null;
-		if(ws["!cols"]) {
-			for(C = 0; C <= range.e.c; ++C) o.push('        <table:table-column' + (ws["!cols"][C] ? ' table:style-name="co' + ws["!cols"][C].ods + '"' : '') + '></table:table-column>\n');
-		}
-		var H = "", ROWS = ws["!rows"]||[];
-		for(R = 0; R < range.s.r; ++R) {
-			H = ROWS[R] ? ' table:style-name="ro' + ROWS[R].ods + '"' : "";
-			o.push('        <table:table-row' + H + '></table:table-row>\n');
-		}
+		var dense = Array.isArray(ws);
+		for(R = 0; R < range.s.r; ++R) o.push('        <table:table-row></table:table-row>\n');
 		for(; R <= range.e.r; ++R) {
-			H = ROWS[R] ? ' table:style-name="ro' + ROWS[R].ods + '"' : "";
-			o.push('        <table:table-row' + H + '>\n');
+			o.push('        <table:table-row>\n');
 			for(C=0; C < range.s.c; ++C) o.push(null_cell_xml);
 			for(; C <= range.e.c; ++C) {
 				var skip = false, ct = {}, textp = "";
@ -237,7 +54,7 @@ var write_content_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function
 					break;
 				}
 				if(skip) { o.push(covered_cell_xml); continue; }
-				var ref = encode_cell({r:R, c:C}), cell = dense ? (ws["!data"][R]||[])[C]: ws[ref];
+				var ref = encode_cell({r:R, c:C}), cell = dense ? (ws[R]||[])[C]: ws[ref];
 				if(cell && cell.f) {
 					ct['table:formula'] = escapexml(csf_to_ods_formula(cell.f));
 					if(cell.F) {
@ -261,7 +78,7 @@ var write_content_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function
 						ct['office:value'] = (cell.v||0);
 						break;
 					case 's': case 'str':
-						textp = cell.v == null ? "" : cell.v;
+						textp = cell.v;
 						ct['office:value-type'] = "string";
 						break;
 					case 'd':
@ -275,65 +92,19 @@ var write_content_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function
 				}
 				var text_p = write_text_p(textp);
 				if(cell.l && cell.l.Target) {
-					var _tgt = cell.l.Target;
-					_tgt = _tgt.charAt(0) == "#" ? "#" + csf_to_ods_3D(_tgt.slice(1)) : _tgt;
-					// TODO: choose correct parent path format based on link delimiters
-					if(_tgt.charAt(0) != "#" && !_tgt.match(/^\w+:/)) _tgt = '../' + _tgt;
-					text_p = writextag('text:a', text_p, {'xlink:href': _tgt.replace(/&/g, "&amp;")});
+					var _tgt = cell.l.Target; _tgt = _tgt.charAt(0) == "#" ? "#" + csf_to_ods_3D(_tgt.slice(1)) : _tgt;
+					text_p = writextag('text:a', text_p, {'xlink:href': _tgt});
 				}
-				if(nfs[cell.z]) ct["table:style-name"] = "ce" + nfs[cell.z].slice(1);
 				o.push('          ' + writextag('table:table-cell', writextag('text:p', text_p, {}), ct) + '\n');
 			}
 			o.push('        </table:table-row>\n');
 		}
-		if((wb.Workbook||{}).Names) o.push(write_names_ods(wb.Workbook.Names, wb.SheetNames, i));
 		o.push('      </table:table>\n');
 		return o.join("");
 	};

-	var write_automatic_styles_ods = function(o/*:Array<string>*/, wb) {
+	var write_automatic_styles_ods = function(o/*:Array<string>*/) {
 		o.push(' <office:automatic-styles>\n');
-
-		/* column styles */
-		var cidx = 0;
-		wb.SheetNames.map(function(n) { return wb.Sheets[n]; }).forEach(function(ws) {
-			if(!ws) return;
-			if(ws["!cols"]) {
-				for(var C = 0; C < ws["!cols"].length; ++C) if(ws["!cols"][C]) {
-					var colobj = ws["!cols"][C];
-					if(colobj.width == null && colobj.wpx == null && colobj.wch == null) continue;
-					process_col(colobj);
-					colobj.ods = cidx;
-					var w = ws["!cols"][C].wpx + "px";
-					o.push('  <style:style style:name="co' + cidx + '" style:family="table-column">\n');
-					o.push('   <style:table-column-properties fo:break-before="auto" style:column-width="' + w + '"/>\n');
-					o.push('  </style:style>\n');
-					++cidx;
-				}
-			}
-		});
-
-		/* row styles */
-		var ridx = 0;
-		wb.SheetNames.map(function(n) { return wb.Sheets[n]; }).forEach(function(ws) {
-			if(!ws) return;
-			if(ws["!rows"]) {
-				for(var R = 0; R < ws["!rows"].length; ++R) if(ws["!rows"][R]) {
-					ws["!rows"][R].ods = ridx;
-					var h = ws["!rows"][R].hpx + "px";
-					o.push('  <style:style style:name="ro' + ridx + '" style:family="table-row">\n');
-					o.push('   <style:table-row-properties fo:break-before="auto" style:row-height="' + h + '"/>\n');
-					o.push('  </style:style>\n');
-					++ridx;
-				}
-			}
-		});
-
-		/* table */
-		o.push('  <style:style style:name="ta1" style:family="table" style:master-page-name="mp1">\n');
-		o.push('   <style:table-properties table:display="true" style:writing-mode="lr-tb"/>\n');
-		o.push('  </style:style>\n');
-
 		o.push('  <number:date-style style:name="N37" number:automatic-order="true">\n');
 		o.push('   <number:month number:style="long"/>\n');
 		o.push('   <number:text>/</number:text>\n');
@ -341,32 +112,8 @@ var write_content_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function
 		o.push('   <number:text>/</number:text>\n');
 		o.push('   <number:year/>\n');
 		o.push('  </number:date-style>\n');
-
-		/* number formats, table cells, text */
-		var nfs = {};
-		var nfi = 69;
-		wb.SheetNames.map(function(n) { return wb.Sheets[n]; }).forEach(function(ws) {
-			if(!ws) return;
-			var dense = (ws["!data"] != null);
-			var range = decode_range(ws["!ref"]);
-			for(var R = 0; R <= range.e.r; ++R) for(var C = 0; C <= range.e.c; ++C) {
-				var c = dense ? (ws["!data"][R]||[])[C] : ws[encode_cell({r:R,c:C})];
-				if(!c || !c.z || c.z.toLowerCase() == "general") continue;
-				if(!nfs[c.z]) {
-					var out = write_number_format_ods(c.z, "N" + nfi);
-					if(out) { nfs[c.z] = "N" + nfi; ++nfi; o.push(out + "\n"); }
-				}
-			}
-		});
 		o.push('  <style:style style:name="ce1" style:family="table-cell" style:parent-style-name="Default" style:data-style-name="N37"/>\n');
-		keys(nfs).forEach(function(nf) {
-			o.push('<style:style style:name="ce' + nfs[nf].slice(1) + '" style:family="table-cell" style:parent-style-name="Default" style:data-style-name="' + nfs[nf] + '"/>\n');
-		});
-
-		/* page-layout */
-
 		o.push(' </office:automatic-styles>\n');
-		return nfs;
 	};

 	return function wcx(wb, opts) {
@ -417,18 +164,12 @@ var write_content_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function
 			'office:mimetype': "application/vnd.oasis.opendocument.spreadsheet"
 		});

-		if(opts.bookType == "fods") {
-			o.push('<office:document' + attr + fods + '>\n');
-			o.push(write_meta_ods().replace(/<office:document-meta.*?>/, "").replace(/<\/office:document-meta>/, "") + "\n");
-			// TODO: settings (equiv of settings.xml for ODS)
-		} else o.push('<office:document-content' + attr  + '>\n');
-		// o.push('  <office:scripts/>\n');
-		var nfs = write_automatic_styles_ods(o, wb);
+		if(opts.bookType == "fods") o.push('<office:document' + attr + fods + '>\n');
+		else o.push('<office:document-content' + attr  + '>\n');
+		write_automatic_styles_ods(o);
 		o.push('  <office:body>\n');
 		o.push('    <office:spreadsheet>\n');
-		if(((wb.Workbook||{}).WBProps||{}).date1904) o.push('      <table:calculation-settings table:case-sensitive="false" table:search-criteria-must-apply-to-whole-cell="true" table:use-wildcards="true" table:use-regular-expressions="false" table:automatic-find-labels="false">\n        <table:null-date table:date-value="1904-01-01"/>\n      </table:calculation-settings>\n');
-		for(var i = 0; i != wb.SheetNames.length; ++i) o.push(write_ws(wb.Sheets[wb.SheetNames[i]], wb, i, opts, nfs));
-		if((wb.Workbook||{}).Names) o.push(write_names_ods(wb.Workbook.Names, wb.SheetNames, -1));
+		for(var i = 0; i != wb.SheetNames.length; ++i) o.push(write_ws(wb.Sheets[wb.SheetNames[i]], wb, i, opts));
 		o.push('    </office:spreadsheet>\n');
 		o.push('  </office:body>\n');
 		if(opts.bookType == "fods") o.push('</office:document>');
@ -440,7 +181,8 @@ var write_content_ods/*:{(wb:any, opts:any):string}*/ = /* @__PURE__ */(function
 function write_ods(wb/*:any*/, opts/*:any*/) {
 	if(opts.bookType == "fods") return write_content_ods(wb, opts);

-	var zip = zip_new();
+	/*:: if(!jszip) throw new Error("JSZip is not available"); */
+	var zip = new jszip();
 	var f = "";

 	var manifest/*:Array<Array<string> >*/ = [];
@ -448,34 +190,34 @@ function write_ods(wb/*:any*/, opts/*:any*/) {

 	/* Part 3 Section 3.3 MIME Media Type */
 	f = "mimetype";
-	zip_add_file(zip, f, "application/vnd.oasis.opendocument.spreadsheet");
+	zip.file(f, "application/vnd.oasis.opendocument.spreadsheet");

 	/* Part 1 Section 2.2 Documents */
 	f = "content.xml";
-	zip_add_file(zip, f, write_content_ods(wb, opts));
+	zip.file(f, write_content_ods(wb, opts));
 	manifest.push([f, "text/xml"]);
 	rdf.push([f, "ContentFile"]);

 	/* TODO: these are hard-coded styles to satiate excel */
 	f = "styles.xml";
-	zip_add_file(zip, f, write_styles_ods(wb, opts));
+	zip.file(f, write_styles_ods(wb, opts));
 	manifest.push([f, "text/xml"]);
 	rdf.push([f, "StylesFile"]);

 	/* TODO: this is hard-coded to satiate excel */
 	f = "meta.xml";
-	zip_add_file(zip, f, XML_HEADER + write_meta_ods(/*::wb, opts*/));
+	zip.file(f, write_meta_ods(/*::wb, opts*/));
 	manifest.push([f, "text/xml"]);
 	rdf.push([f, "MetadataFile"]);

 	/* Part 3 Section 6 Metadata Manifest File */
 	f = "manifest.rdf";
-	zip_add_file(zip, f, write_rdf(rdf/*, opts*/));
+	zip.file(f, write_rdf(rdf/*, opts*/));
 	manifest.push([f, "application/rdf+xml"]);

 	/* Part 3 Section 4 Manifest File */
 	f = "META-INF/manifest.xml";
-	zip_add_file(zip, f, write_manifest(manifest/*, opts*/));
+	zip.file(f, write_manifest(manifest/*, opts*/));

 	return zip;
 }
--- a/bits/82_sheeter.js
+++ b/bits/82_sheeter.js
@ -0,0 +1,24 @@
+function write_sheet_index(wb/*:Workbook*/, sheet/*:?string*/)/*:number*/ {
+	if(!sheet) return 0;
+	var idx = wb.SheetNames.indexOf(sheet);
+	if(idx == -1) throw new Error("Sheet not found: " + sheet);
+	return idx;
+}
+
+function write_obj_str(factory/*:WriteObjStrFactory*/) {
+	return function write_str(wb/*:Workbook*/, o/*:WriteOpts*/)/*:string*/ {
+		var idx = write_sheet_index(wb, o.sheet);
+		return factory.from_sheet(wb.Sheets[wb.SheetNames[idx]], o, wb);
+	};
+}
+
+var write_htm_str = write_obj_str(HTML_);
+var write_csv_str = write_obj_str({from_sheet:sheet_to_csv});
+var write_slk_str = write_obj_str(SYLK);
+var write_dif_str = write_obj_str(DIF);
+var write_prn_str = write_obj_str(PRN);
+var write_rtf_str = write_obj_str(RTF);
+var write_txt_str = write_obj_str({from_sheet:sheet_to_txt});
+var write_dbf_buf = write_obj_str(DBF);
+var write_eth_str = write_obj_str(ETH);
+
--- a/Show More
+++ b/Show More