diff --git a/.spelling b/.spelling
index e0370dde..e326155d 100644
--- a/.spelling
+++ b/.spelling
@@ -23,12 +23,18 @@ SpreadsheetML
 Unhide
 VBA
 Visicalc
+Chartsheet
 chartsheet
+Chartsheets
 chartsheets
+Dialogsheet
 dialogsheet
+Dialogsheets
 dialogsheets
 dBASE
+Macrosheet
 macrosheet
+Macrosheets
 macrosheets
 tooltip
 tooltips
@@ -192,3 +198,11 @@ vscode-data-preview
 axios
 superagent
 
+LLC
+Bundlers
+JSON
+QPW
+XLML
+XLS
+XLSB
+XLSX
diff --git a/Makefile b/Makefile
index 89877b81..54334264 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,10 @@ build:
 serve:
 	cd docs; python -mSimpleHTTPServer || python3 -mhttp.server; cd -
 
+.PHONY: spell
+spell:
+	npx spellchecker-cli -d .spelling -f 'docz/**/*.md*'
+
 .PHONY: index
 index: readme ## Rebuild site
 	sed -i .bak 's/](d/](https:\/\/github.com\/SheetJS\/SheetJS\/tree\/master\/d/g' README.md
diff --git a/docz/docs/02-getting-started/02-example.mdx b/docz/docs/02-getting-started/02-example.mdx
index e3c307ce..7e84ca99 100644
--- a/docz/docs/02-getting-started/02-example.mdx
+++ b/docz/docs/02-getting-started/02-example.mdx
@@ -18,8 +18,8 @@ and birthdays.  [Click here](#live-demo) to jump to the live demo
 
 ### Raw Data
 
-[The raw data is available in JSON form](https://theunitedstates.io/congress-legislators/executive.json).
-For convenience, it has been [mirrored here](https://sheetjs.com/executive.json)
+[The raw data is available in JSON form](https://theunitedstates.io/congress-legislators/data/executive.json).
+For convenience, it has been [mirrored here](https://sheetjs.com/data/executive.json)
 
 The data result is an Array of objects.  This is the data for John Adams:
 
@@ -165,7 +165,7 @@ XLSX.writeFile(workbook, "Presidents.xlsx");
 ```jsx live
 function Presidents() { return ( <button onClick={async () => {
   /* fetch JSON data and parse */
-  const url = "https://sheetjs.com/executive.json";
+  const url = "https://sheetjs.com/data/executive.json";
   const raw_data = await (await fetch(url)).json();
 
   /* filter for the Presidents */
@@ -213,7 +213,7 @@ hosted (no `file:///` access).
 <script>
 (async() => {
   /* fetch JSON data and parse */
-  const url = "https://sheetjs.com/executive.json";
+  const url = "https://sheetjs.com/data/executive.json";
   const raw_data = await (await fetch(url)).json();
 
   /* filter for the Presidents */
@@ -259,7 +259,7 @@ const XLSX = require("xlsx");
 
 (async() => {
   /* fetch JSON data and parse */
-  const url = "https://sheetjs.com/executive.json";
+  const url = "https://sheetjs.com/data/executive.json";
   const raw_data = await (await fetch(url)).json();
 
   /* filter for the Presidents */
@@ -309,7 +309,7 @@ const axios = require("axios");
 
 (async() => {
   /* fetch JSON data and parse */
-  const url = "https://sheetjs.com/executive.json";
+  const url = "https://sheetjs.com/data/executive.json";
   // highlight-next-line
   const raw_data = (await axios(url, {responseType: "json"})).data;
 
@@ -352,7 +352,7 @@ Save the following script to `snippet.ts` and run with
 import * as XLSX from 'https://cdn.sheetjs.com/xlsx-latest/package/xlsx.mjs';
 
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -393,7 +393,7 @@ import * as fs from 'fs';
 XLSX.set_fs(fs);
 
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
diff --git a/docz/docs/03-demos/03-database.md b/docz/docs/03-demos/03-database.md
index 2a79707f..9dee2374 100644
--- a/docz/docs/03-demos/03-database.md
+++ b/docz/docs/03-demos/03-database.md
@@ -101,7 +101,7 @@ await db.collection('coll').insertMany(aoo, { ordered: true });
 
 :::
 
-This example will fetch <https://sheetjs.com/cd.xls>, scan the columns of the
+This example will fetch <https://sheetjs.com/data/cd.xls>, scan the columns of the
 first worksheet to determine data types, and generate 6 PostgreSQL statements.
 
 <details><summary><b>Explanation</b> (click to show)</summary>
@@ -208,7 +208,7 @@ function SheetJSQLWriter() {
       if(fields.length) return `INSERT INTO \`${wsname}\` (${fields.join(", ")}) VALUES (${values.join(", ")})`;
     })).filter(x => x).slice(0, 6);
   }
-  const [url, setUrl] = React.useState("https://sheetjs.com/cd.xls");
+  const [url, setUrl] = React.useState("https://sheetjs.com/data/cd.xls");
   const set_url = React.useCallback((evt) => setUrl(evt.target.value));
   const [out, setOut] = React.useState("");
   const xport = React.useCallback(async() => {
@@ -494,7 +494,7 @@ for(var i = 0; i < localStorage.length; ++i) aoo.push(JSON.parse(localStorage.ge
 const ws = XLSX.utils.json_to_sheet(aoo);
 ```
 
-This example will fetch <https://sheetjs.com/cd.xls>, fill `localStorage` with
+This example will fetch <https://sheetjs.com/data/cd.xls>, fill `localStorage` with
 rows, then generate a worksheet from the rows and write to a new file.
 
 :::caution
@@ -506,7 +506,7 @@ is strongly recommended to convert that array to a worksheet directly.
 
 ```jsx live
 function SheetJStorage() {
-  const [url, setUrl] = React.useState("https://sheetjs.com/cd.xls");
+  const [url, setUrl] = React.useState("https://sheetjs.com/data/cd.xls");
   const set_url = React.useCallback((evt) => setUrl(evt.target.value));
   const [out, setOut] = React.useState("");
   const xport = React.useCallback(async() => {
diff --git a/docz/docs/03-demos/08-ml.mdx b/docz/docs/03-demos/08-ml.mdx
index 4ce44292..6d58fb8f 100644
--- a/docz/docs/03-demos/08-ml.mdx
+++ b/docz/docs/03-demos/08-ml.mdx
@@ -44,7 +44,7 @@ function worksheet_to_csv_url(worksheet) {
 ```
 
 [This demo mirrors TFjs docs](https://js.tensorflow.org/api/latest/#data.csv),
-fetching [an XLSX export of the example dataset](https://sheetjs.com/bht.xlsx).
+fetching [an XLSX export of the example dataset](https://sheetjs.com/data/bht.xlsx).
 
 <details><summary><b>TF CSV Demo using XLSX files</b> (click to show)</summary>
 
@@ -53,7 +53,7 @@ function SheetJSToTFJSCSV() {
   const [output, setOutput] = React.useState("");
   const doit = React.useCallback(async () => {
     /* fetch file */
-    const f = await fetch("https://sheetjs.com/bht.xlsx");
+    const f = await fetch("https://sheetjs.com/data/bht.xlsx");
     const ab = await f.arrayBuffer();
     /* parse file and get first worksheet */
     const wb = XLSX.read(ab);
@@ -125,7 +125,7 @@ loads data from a JSON file:
 ]
 ```
 
-In real use cases, data is stored in [spreadsheets](https://sheetjs.com/cd.xls)
+In real use cases, data is stored in [spreadsheets](https://sheetjs.com/data/cd.xls)
 
 ![cd.xls screenshot](pathname:///files/cd.png)
 
@@ -140,7 +140,7 @@ from the official example are highlighted below:
 async function getData() {
   // highlight-start
   /* fetch file */
-  const carsDataResponse = await fetch('https://sheetjs.com/cd.xls');
+  const carsDataResponse = await fetch('https://sheetjs.com/data/cd.xls');
   /* get file data (ArrayBuffer) */
   const carsDataAB = await carsDataResponse.arrayBuffer();
   /* parse */
diff --git a/docz/docs/03-demos/09-bundler.md b/docz/docs/03-demos/09-bundler.md
index 0ff7810b..8d2565a2 100644
--- a/docz/docs/03-demos/09-bundler.md
+++ b/docz/docs/03-demos/09-bundler.md
@@ -124,7 +124,7 @@ import * as fs from 'fs';
 XLSX.set_fs(fs);
 
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -209,7 +209,7 @@ import { utils, version, writeFileXLSX } from 'xlsx/xlsx.mjs';
 
 (async() => {
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -291,7 +291,7 @@ set_fs(fs);
 
 (async() => {
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -369,7 +369,7 @@ import { utils, version, writeFileXLSX } from 'xlsx';
 document.getElementById("vers").innerText = version;
 document.getElementById("xport").onclick = async() => {
   /* fetch JSON data and parse */
-  const url = "https://sheetjs.com/executive.json";
+  const url = "https://sheetjs.com/data/executive.json";
   const raw_data = await (await fetch(url)).json();
 
   /* filter for the Presidents */
@@ -495,7 +495,7 @@ import { utils, version, writeFileXLSX } from 'xlsx/xlsx.mjs';
 
 document.getElementById("xport").addEventListener("click", async() => {
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -589,7 +589,7 @@ import { utils, version, writeFileXLSX } from 'xlsx/xlsx.mjs';
 
 document.getElementById("xport").addEventListener("click", async() => {
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -694,7 +694,7 @@ import { utils, version, writeFileXLSX } from 'xlsx';
 
 document.getElementById("xport").addEventListener("click", async() => {
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -910,7 +910,7 @@ SystemJS.config({
 SystemJS.import('xlsx').then(async function(XLSX) {
 
   /* fetch JSON data and parse */
-  const url = "https://sheetjs.com/executive.json";
+  const url = "https://sheetjs.com/data/executive.json";
   const raw_data = await (await fetch(url)).json();
 
   /* filter for the Presidents */
@@ -1005,7 +1005,7 @@ interface President {
 
 async function xport() {
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data: President[] = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -1108,7 +1108,7 @@ import { utils, version, writeFileXLSX } from 'xlsx/xlsx.mjs';
 
 document.getElementById("xport").addEventListener("click", async() => {
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
@@ -1268,7 +1268,7 @@ import { utils, version, writeFileXLSX } from 'xlsx/xlsx.mjs';
 
 document.getElementById("xport").addEventListener("click", async() => {
 /* fetch JSON data and parse */
-const url = "https://sheetjs.com/executive.json";
+const url = "https://sheetjs.com/data/executive.json";
 const raw_data = await (await fetch(url)).json();
 
 /* filter for the Presidents */
diff --git a/docz/docs/03-demos/25-azure.md b/docz/docs/03-demos/25-azure.md
new file mode 100644
index 00000000..0379b022
--- /dev/null
+++ b/docz/docs/03-demos/25-azure.md
@@ -0,0 +1,277 @@
+---
+sidebar_position: 25
+title: Azure Cloud Services
+---
+
+Azure is a Cloud Services platform which includes traditional virtual machine
+support, "Serverless Functions", cloud storage and much more.
+
+:::caution
+
+Azure iterates quickly and there is no guarantee that the referenced services
+will be available in the future.
+
+:::
+
+This demo focuses on two key offerings: cloud storage ("Azure Blob Storage")
+and the "Serverless Function" platform ("Azure Functions").
+
+## Azure Functions
+
+This discussion focuses on the "HTTP Trigger" function type.
+
+:::info
+
+To enable binary data processing, a setting must be changed in `function.json`:
+
+```json title="function.json"
+{
+  "bindings": [
+    {
+      "type": "httpTrigger",
+      "direction": "in",
+//highlight-next-line
+      "dataType": "binary",
+      "name": "req",
+```
+
+:::
+
+### Reading Data
+
+`formidable` expects a stream and Azure does not present one.  It can be made:
+
+```js
+const XLSX = require('xlsx');
+const formidable = require('formidable');
+const Readable = require('stream').Readable;
+
+/* formidable expects the request object to be a stream */
+const streamify = (req) => {
+  if(typeof req.on !== 'undefined') return req;
+  const s = new Readable();
+  s._read = ()=>{};
+  s.push(Buffer.from(req.body));
+  s.push(null);
+  Object.assign(s, req);
+  return s;
+};
+
+module.exports = (context, req) => {
+  const form = new formidable.IncomingForm();
+  form.parse(streamify(req), (err, fields, files) => {
+    /* grab the first file */
+    var f = files["upload"];
+    if(!f) {
+      context.res = { status: 400, body: "Must submit a file for processing!" };
+    } else {
+      /* file is stored in a temp directory, so we can point to that and read it */
+      const wb = XLSX.read(f.filepath, {type:"file"});
+
+      /* generate CSV from first sheet */
+      const csv = XLSX.utils.sheet_to_csv(wb.Sheets[wb.SheetNames[0]]);
+      context.res = { status: 200, body: csv };
+    }
+    context.done();
+  });
+}
+```
+
+### Writing Data
+
+The `body` property can be a Buffer, like those generated by `XLSX.write`:
+
+```js
+const XLSX = require('xlsx');
+module.exports = (context, req) => {
+  // generate XLSX file in a Buffer
+  var ws = XLSX.utils.aoa_to_sheet(["SheetJS".split(""), [5,4,3,3,7,9,5]]);
+  var wb = XLSX.utils.book_new(); XLSX.utils.book_append_sheet(wb, ws, "Data");
+  // highlight-next-line
+  var buf = XLSX.write(wb, {type: "buffer", bookType: "xlsx"});
+
+  // Set the body and Content-Disposition header
+  // highlight-start
+  context.res = {
+    status: 200,
+    headers: { "Content-Disposition": `attachment; filename="SheetJSAzure.xlsx";` },
+    body: buf
+  };
+  // highlight-end
+  context.done();
+};
+```
+
+### Demo
+
+<details><summary><b>Complete Example</b> (click to show)</summary>
+
+0) Review the quick start for JavaScript on Azure Functions.  This involves
+installing the Azure Functions Core Tools and other dependencies.
+
+1) Create a new project and install dependencies:
+
+```bash
+func init sheetjs-azure --worker-runtime node --language javascript
+cd sheetjs-azure
+npm i
+npm i --save https://cdn.sheetjs.com/xlsx-latest/xlsx-latest.tgz formidable
+```
+
+2) Create a new "HTTP Trigger" function:
+
+```bash
+func new --template "Http Trigger" --name SheetJSAzure
+```
+
+3) Edit `SheetJSAzure/function.json` to add the `dataType: "binary"` property:
+
+```js title="SheetJSAzure/function.json"
+      "direction": "in",
+// highlight-next-line
+      "dataType": "binary",
+      "name": "req",
+```
+
+4) Replace `SheetJSAzure/index.js` with the following:
+
+```js title="SheetJSAzure/index.js"
+/* sheetjs (C) 2013-present SheetJS -- http://sheetjs.com */
+const XLSX = require('xlsx');
+const formidable = require('formidable');
+const Readable = require('stream').Readable;
+
+/* formidable expects the request object to be a stream */
+const streamify = (req) => {
+    if(typeof req.on !== 'undefined') return req;
+    const s = new Readable();
+    s._read = ()=>{};
+    s.push(Buffer.from(req.body));
+    s.push(null);
+    Object.assign(s, req);
+    return s;
+};
+
+module.exports = (context, req) => {
+  if(req.method == "POST") {
+    const form = new formidable.IncomingForm();
+    form.parse(streamify(req), (err, fields, files) => {
+      /* grab the first file */
+      var f = files["upload"];
+      if(!f) {
+        context.res = { status: 400, body: "Must submit a file for processing!" };
+      } else {
+        /* file is stored in a temp directory, so we can point to that and read it */
+        const wb = XLSX.read(f.filepath, {type:"file"});
+
+        /* generate CSV from first sheet */
+        const csv = XLSX.utils.sheet_to_csv(wb.Sheets[wb.SheetNames[0]]);
+        context.res = { status: 200, body: csv };
+      }
+      context.done();
+    });
+  } else if(req.method == "GET") {
+    var ws = XLSX.utils.aoa_to_sheet(["SheetJS".split(""), [5,4,3,3,7,9,5]]);
+    var wb = XLSX.utils.book_new(); XLSX.utils.book_append_sheet(wb, ws, "Data");
+    var buf = XLSX.write(wb, {type: "buffer", bookType: "xlsx"});
+    context.res = {
+      status: 200,
+      headers: { "Content-Disposition": `attachment; filename="SheetJSAzure.xlsx";` },
+      body: buf
+    };
+    context.done();
+  } else {
+    context.res = { status: 500, body: `Unsupported method ${req.method}` };
+    context.done();
+  }
+};
+```
+
+5) Test locally with `npm start`
+
+To test uploads, download <https://sheetjs.com/pres.numbers> and run:
+
+```bash
+curl -X POST -F "upload=@pres.numbers" http://localhost:7071/api/SheetJSAzure
+```
+
+To test downloads, access http://localhost:7071/api/SheetJSAzure and download
+the generated file.  Confirm it is a valid file.
+
+6) Deploy to Azure.  Replace `NAME_OF_FUNCTION_APP` with the name:
+
+```bash
+func azure functionapp publish NAME_OF_FUNCTION_APP
+```
+
+Get the function url and test using the same sequence as in step 5.
+
+</details>
+
+## Azure Blob Storage
+
+:::note
+
+This was tested on 2022 August 21.
+
+:::
+
+The main module for Azure Blob Storage is `@azure/storage-blob`. This example
+was tested using the "Connection String" authentication method.  The strings
+are found in the Azure Portal under "Access Keys" for the storage account.
+
+### Reading Data
+
+The `BlobClient#download` method returns a Stream. After collecting into a
+Buffer, `XLSX.read` can parse the data:
+
+```js title="SheetJSReadFromAzure.mjs"
+import { BlobServiceClient } from "@azure/storage-blob";
+import { read, utils } from "xlsx";
+
+/* replace these constants */
+const connStr = "<REPLACE WITH CONNECTION STRING>";
+const containerName = "<REPLACE WITH CONTAINER NAME>";
+const blobName = "<REPLACE WITH BLOB NAME>";
+
+/* get a readable stream*/
+const blobServiceClient = BlobServiceClient.fromConnectionString(connStr);
+const containerClient = blobServiceClient.getContainerClient(containerName);
+const blobClient = containerClient.getBlobClient(blobName);
+const response = (await blobClient.download()).readableStreamBody;
+
+/* collect data into a Buffer */
+const bufs = [];
+for await(const buf of response) bufs.push(buf);
+const downloaded = Buffer.concat(bufs);
+
+/* parse downloaded buffer */
+const wb = read(downloaded);
+/* print first worksheet */
+console.log(utils.sheet_to_csv(wb.Sheets[wb.SheetNames[0]]));
+```
+
+### Writing Data
+
+`BlockBlobClient#upload` directly accepts a Buffer:
+
+```js title="SheetJSWriteToAzure.mjs"
+import { BlobServiceClient } from "@azure/storage-blob";
+import { read, utils } from "xlsx";
+
+/* replace these constants */
+const connStr = "<REPLACE WITH CONNECTION STRING>";
+const containerName = "<REPLACE WITH CONTAINER NAME>";
+const blobName = "<REPLACE WITH BLOB NAME>";
+
+/* Create a simple workbook and write XLSX to buffer */
+const ws = utils.aoa_to_sheet(["SheetJS".split(""), [5,4,3,3,7,9,5]]);
+const wb = utils.book_new(); utils.book_append_sheet(wb, ws, "Sheet1");
+const buf = write(wb, {type: "buffer", bookType: "xlsx"});
+
+/* upload buffer */
+const blobServiceClient = BlobServiceClient.fromConnectionString(connStr);
+const containerClient = blobServiceClient.getContainerClient(containerName);
+const blockBlobClient = containerClient.getBlockBlobClient(blobName);
+const uploadBlobResponse = await blockBlobClient.upload(buf, buf.length);
+```
diff --git a/docz/docs/03-demos/index.md b/docz/docs/03-demos/index.md
index 62ade1d7..de9cf88c 100644
--- a/docz/docs/03-demos/index.md
+++ b/docz/docs/03-demos/index.md
@@ -36,7 +36,7 @@ The demo projects include small runnable examples and short explainers.
 
 - [`Command-Line Tools`](./cli)
 - [`iOS and Android Mobile Applications`](./mobile)
-- [`NodeJS Server-Side Processing`](https://github.com/SheetJS/SheetJS/tree/master/demos/server/)
+- [`NodeJS Server-Side Processing`](./server#nodejs)
 - [`Deno Server-Side Processing`](./server#deno)
 - [`Content Management and Static Sites`](./content)
 - [`Electron`](./desktop#electron)
@@ -50,7 +50,7 @@ The demo projects include small runnable examples and short explainers.
 - [`Excel JavaScript API`](./excel)
 - [`Headless Automation`](./headless)
 - [`Other JavaScript Engines`](./engines)
-- [`"serverless" functions`](https://github.com/SheetJS/SheetJS/tree/master/demos/function/)
+- [`Azure Functions and Storage`](./azure)
 - [`Databases and Structured Data Stores`](./database)
 - [`NoSQL and Unstructured Data Stores`](./nosql)
 - [`Legacy Internet Explorer`](./legacy#internet-explorer)
diff --git a/docz/static/requirejs/requirejs.html b/docz/static/requirejs/requirejs.html
index c8503e99..9b7f482e 100644
--- a/docz/static/requirejs/requirejs.html
+++ b/docz/static/requirejs/requirejs.html
@@ -17,7 +17,7 @@ require.config({
 require(["xlsx"], function(XLSX) {
   document.getElementById("xport").addEventListener("click", async() => {
     /* fetch JSON data and parse */
-    const url = "https://sheetjs.com/executive.json";
+    const url = "https://sheetjs.com/data/executive.json";
     const raw_data = await (await fetch(url)).json();
 
     /* filter for the Presidents */