diff --git a/docz/docs/05-interface.md b/docz/docs/05-interface.md
index 68a7aa4..cf9ff0c 100644
--- a/docz/docs/05-interface.md
+++ b/docz/docs/05-interface.md
@@ -8,7 +8,7 @@ sidebar_position: 5
 
 `XLSX.version` is the version of the library (added by the build script).
 
-`XLSX.SSF` is an embedded version of the [format library](https://github.com/SheetJS/ssf).
+`XLSX.SSF` is an embedded version of the [format library](https://github.com/SheetJS/sheetjs/tree/master/packages/ssf).
 
 ## Parsing functions
 
diff --git a/docz/docs/06-solutions/05-output.md b/docz/docs/06-solutions/05-output.md
index 10cde1c..34d2c4d 100644
--- a/docz/docs/06-solutions/05-output.md
+++ b/docz/docs/06-solutions/05-output.md
@@ -140,19 +140,6 @@ XLSX.writeFile(workbook, "out.xlsb");
 `XLSX.writeFile` techniques work for most modern browsers as well as older IE.
 For much older browsers, there are workarounds implemented by wrapper libraries.
 
-[`FileSaver.js`](https://github.com/eligrey/FileSaver.js/) implements `saveAs`.
-Note: `XLSX.writeFile` will automatically call `saveAs` if available.
-
-```js
-/* bookType can be any supported output type */
-var wopts = { bookType:"xlsx", bookSST:false, type:"array" };
-
-var wbout = XLSX.write(workbook,wopts);
-
-/* the saveAs call downloads a file on the local machine */
-saveAs(new Blob([wbout],{type:"application/octet-stream"}), "test.xlsx");
-```
-
 [`Downloadify`](https://github.com/dcneiner/downloadify) uses a Flash SWF button
 to generate local files, suitable for environments where ActiveX is unavailable:
 
diff --git a/docz/docs/09-miscellany/06-testing.md b/docz/docs/09-miscellany/06-testing.md
index f93ef6a..c7b3735 100644
--- a/docz/docs/09-miscellany/06-testing.md
+++ b/docz/docs/09-miscellany/06-testing.md
@@ -18,11 +18,6 @@ you want to test.  Feature-specific tests are available with `make test_misc`
 ```bash
 $ make test_misc   # run core tests
 $ make test        # run full tests
-$ make test_xls    # only use the XLS test files
-$ make test_xlsx   # only use the XLSX test files
-$ make test_xlsb   # only use the XLSB test files
-$ make test_xml    # only use the XML test files
-$ make test_ods    # only use the ODS test files
 ```
 
 To enable all errors, set the environment variable `WTF=1`:
@@ -36,7 +31,6 @@ $ WTF=1 make test  # enable all error messages
 
 ```bash
 $ make lint        # eslint checks
-$ make flow        # make lint + Flow checking
 $ make tslint      # check TS definitions
 ```
 
@@ -50,23 +44,23 @@ Start a local server and navigate to that directory to run the tests.
 `make ctest` will generate the browser fixtures.  To add more files, edit the
 `tests/fixtures.lst` file and add the paths.
 
-To run the full in-browser tests, clone the repo for
-[`oss.sheetjs.com`](https://github.com/SheetJS/SheetJS.github.io) and replace
-the `xlsx.js` file (then open a browser window and go to `stress.html`):
-
-```bash
-$ cp xlsx.js ../SheetJS.github.io
-$ cd ../SheetJS.github.io
-$ simplehttpserver # or "python -mSimpleHTTPServer" or "serve"
-$ open -a Chromium.app http://localhost:8000/stress.html
-```
-
   </TabItem>
   <TabItem value="deno" label="Deno">
 
 `make test-deno` will run the full Deno test suite and `make test-deno_misc`
 will run the smaller feature-specific tests.
 
+  </TabItem>
+  <TabItem value="extendscript" label="Extendscript">
+
+`make dist` will build `xlsx.extendscript.js`.
+
+The script `estk.jsx` at the root of the project is configured to run in
+ExtendScript Toolkit.  It will read `sheetjs.xlsx` and attempt to write test
+files in a number of file formats.
+
+ExtendScript Toolkit 3.5 is available as a standalone download for Windows.
+
   </TabItem>
 </Tabs>
 
diff --git a/docz/docs/09-miscellany/07-contributing.md b/docz/docs/09-miscellany/07-contributing.md
index d230e2a..46acebb 100644
--- a/docz/docs/09-miscellany/07-contributing.md
+++ b/docz/docs/09-miscellany/07-contributing.md
@@ -31,7 +31,7 @@ Folders:
 
 After cloning the repo, running `make help` will display a list of commands.
 
-## Platform-Specific Setup
+## OS-Specific Setup
 
 import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
@@ -75,12 +75,6 @@ chmod +x compile-git-with-openssl.sh
 ./compile-git-with-openssl.sh
 ```
 
-4) (For deno testing) Install deno:
-
-```bash
-curl -fsSL https://deno.land/install.sh | sh
-```
-
 (instructions continued in the OSX/Linux part)
 
   </TabItem>
@@ -132,6 +126,12 @@ make test_misc
 # Full Build
 cd modules; make; cd ..
 make dist
+```
+
+4) (For deno testing) Install deno:
+
+```bash
+curl -fsSL https://deno.land/install.sh | sh
 ```
 
   </TabItem>