diff --git a/.spelling b/.spelling
index 1ef86a4..71fb8de 100644
--- a/.spelling
+++ b/.spelling
@@ -25,6 +25,8 @@ DIF
 Dialogsheet
 Dialogsheets
 ECMA-376
+FM3
+FMT
 FODS
 FoxPro
 IEEE754
@@ -49,20 +51,25 @@ SYLK
 SpreadsheetML
 TSV
 TXT
+UOS
 UOS1
 UOS2
 Unhide
 VBA
+VFP
 Visicalc
+WB
 WB1
 WB2
 WB3
+WK
 WK1
 WK2
 WK3
 WK4
 WKS
 WK_
+WQ
 WQ1
 WQ2
 WQ3
@@ -101,11 +108,13 @@ Base64
 Booleans
 Browserify
 Bundlers
+CLI
 CMS
 CS6
 CapacitorJS
 CommonJS
 Cordova
+DOM
 Deno
 Drash
 Ethercalc
@@ -115,6 +124,7 @@ GatsbyJS
 HTML
 HTML5
 IE
+IE8
 IE10
 IE11
 IE6
@@ -147,6 +157,8 @@ RequireJS
 Rollup
 SQLite
 SWC
+SWF
+Serverless
 SessionStorage
 Snowpack
 SuiteScript
@@ -169,6 +181,7 @@ WebSQL
 Webpack
 XHR
 XMLHttpRequest
+XP
 async
 axios
 bundler
@@ -192,6 +205,7 @@ iWork
 javascript
 lifecycle
 metadata
+middleware
 natively
 node.js
 nodejs
diff --git a/docz/docs/02-getting-started/01-installation/06-amd.md b/docz/docs/02-getting-started/01-installation/06-amd.md
index 7e56716..f860380 100644
--- a/docz/docs/02-getting-started/01-installation/06-amd.md
+++ b/docz/docs/02-getting-started/01-installation/06-amd.md
@@ -53,7 +53,7 @@ sap.ui.define([
 
 :::warning
 
-The [SAP Website has a note about including third-party JS libraries.](https://blogs.sap.com/2017/04/30/how-to-include-third-party-libraries-modules-in-sapui5/SAPUI5)
+The [SAP Website has a note about including third-party JS libraries.](https://blogs.sap.com/2017/04/30/how-to-include-third-party-libraries-modules-in-sapui5/)
 It recommends copying and pasting JavaScript code.
 
 **Copy and pasting code does not work** for SheetJS scripts as they contain
diff --git a/docz/docs/03-demos/01-salesforce.md b/docz/docs/03-demos/01-salesforce.md
index 676ff56..8618695 100644
--- a/docz/docs/03-demos/01-salesforce.md
+++ b/docz/docs/03-demos/01-salesforce.md
@@ -1,9 +1,8 @@
 ---
 sidebar_position: 1
+title: Salesforce LWC
 ---
 
-# Salesforce LWC
-
 Salesforce apps can use third-party libraries in "Lightning Web Components".
 
 This demo assumes familiarity with Lightning Web Components.  Salesforce has a
diff --git a/docz/docs/03-demos/23-angular.md b/docz/docs/03-demos/23-angular.md
index 445c0c3..386411f 100644
--- a/docz/docs/03-demos/23-angular.md
+++ b/docz/docs/03-demos/23-angular.md
@@ -30,7 +30,7 @@ issues should be directed to the Angular project.
 ## Installation
 
 [The "Frameworks" section](../getting-started/installation/frameworks) covers
-installation with pnpm and other package managers.
+installation with `pnpm` and other package managers.
 
 The library can be imported directly from JS or TS code with:
 
diff --git a/docz/docs/03-demos/24-server.md b/docz/docs/03-demos/24-server.md
index 453b2bd..070a9c8 100644
--- a/docz/docs/03-demos/24-server.md
+++ b/docz/docs/03-demos/24-server.md
@@ -370,7 +370,7 @@ npx @nestjs/cli generate module sheetjs
 npx @nestjs/cli generate controller sheetjs
 ```
 
-3) Add Multer to the new module by editing `src/sheetjs/sheetjs.module.ts`.
+3) Add `multer` to the new module by editing `src/sheetjs/sheetjs.module.ts`.
 Changes are highlighted below:
 
 ```ts title="src/sheetjs/sheetjs.module.ts"
diff --git a/docz/docs/03-demos/25-azure.md b/docz/docs/03-demos/25-azure.md
index 12a2128..d9f0849 100644
--- a/docz/docs/03-demos/25-azure.md
+++ b/docz/docs/03-demos/25-azure.md
@@ -210,7 +210,7 @@ the generated file.  Confirm it is a valid file.
 func azure functionapp publish NAME_OF_FUNCTION_APP
 ```
 
-Get the function url and test using the same sequence as in step 5.
+Get the function URL and test using the same sequence as in step 5.
 
 </details>
 
diff --git a/docz/docs/07-csf/03-sheet.md b/docz/docs/07-csf/03-sheet.md
index 5cb6752..a87daba 100644
--- a/docz/docs/07-csf/03-sheet.md
+++ b/docz/docs/07-csf/03-sheet.md
@@ -84,8 +84,8 @@ In addition to the aforementioned sheet keys, worksheets also add:
 
 | key       | Excel feature                                 | default |
 |:----------|:----------------------------------------------|:--------|
-| `above`   | Uncheck "Summary rows below detail"           | `false` |
-| `left`    | Uncheck "Summary rows to the right of detail" | `false` |
+| `above`   | Disable "Summary rows below detail"           | `false` |
+| `left`    | Disable "Summary rows to the right of detail" | `false` |
 
 - `ws['!protect']`: object of write sheet protection properties.  The `password`
   key specifies the password for formats that support password-protected sheets
diff --git a/docz/docs/08-api/09-utilities.md b/docz/docs/08-api/09-utilities.md
index 806995a..3100bfa 100644
--- a/docz/docs/08-api/09-utilities.md
+++ b/docz/docs/08-api/09-utilities.md
@@ -533,7 +533,7 @@ takes an options argument:
 | Option Name |  Default | Description                                         |
 | :---------- | :------: | :-------------------------------------------------- |
 |`raw`        | `true`   | Use raw values (true) or formatted strings (false)  |
-|`range`      | from WS  | Override Range (see table below)                    |
+|`range`      |    **    | Override Range (see table below)                    |
 |`header`     |          | Control output format (see table below)             |
 |`dateNF`     |  FMT 14  | Use specified date format in string output          |
 |`defval`     |          | Use specified value in place of null or undefined   |
diff --git a/docz/docs/09-miscellany/05-contributing.md b/docz/docs/09-miscellany/05-contributing.md
index 72e3af7..9740ea1 100644
--- a/docz/docs/09-miscellany/05-contributing.md
+++ b/docz/docs/09-miscellany/05-contributing.md
@@ -147,8 +147,8 @@ curl https://bun.sh/install | bash
 ## Development
 
 The `xlsx.js` and `xlsx.mjs` files are constructed from the files in the `bits`
-subdirectory. The build script (run `make`) will concatenate the individual
-bits to produce the scripts.
+subfolder. The build script (run `make`) will concatenate the individual bits
+to produce the scripts.
 
 To produce the dist files, run `make dist`.  The dist files are updated in each
 version release and *should not be committed between versions*.
diff --git a/docz/docs/index.md b/docz/docs/index.md
index 0c27499..6f9840c 100644
--- a/docz/docs/index.md
+++ b/docz/docs/index.md
@@ -23,9 +23,8 @@ port calculations to web apps; automate common spreadsheet tasks, and much more!
 
 ## Simple Examples
 
-The code editors are live -- feel free to edit!  Due to technical limitations,
-they showcase ReactJS patterns.  Other parts of the documentation will cover
-more common use cases including plain JavaScript.
+The code editors are live -- feel free to edit! They use ReactJS components and
+run entirely in the web browser.
 
 ### Export an HTML Table to Excel XLSX
 
@@ -51,17 +50,26 @@ more common use cases including plain JavaScript.
 
 4) Add an event handler for the `click` event to create a workbook and download:
 
-```js
+```html
+<script>
 document.getElementById("sheetjsexport").addEventListener('click', function() {
   /* Create worksheet from HTML DOM TABLE */
   var wb = XLSX.utils.table_to_book(document.getElementById("TableToExport"));
   /* Export to file (start a download) */
   XLSX.writeFile(wb, "SheetJSTable.xlsx");
 });
+</script>
 ```
 
 </details>
 
+<details><summary><b>How to automate with NodeJS</b> (click to show)</summary>
+
+[The "Headless Automation" demo](http://localhost:3000/docs/demos/headless)
+includes complete examples using the `puppeteer` and `playwright` libraries.
+
+</details>
+
 <details open><summary><b>Live Example</b> (click to hide)</summary>
 
 ```jsx live
@@ -164,50 +172,63 @@ support for CSS styling and rich text.
 
 </details>
 
-### Convert a CSV file to HTML Table and Excel XLSX
+### Preview a workbook on your device
 
-<details><summary><b>Live Example</b> (click to show)</summary>
+<details open><summary><b>Live Example</b> (click to hide)</summary>
+
+This example starts from a CSV string.  Use the File Input element to select
+a workbook to load.  Use the "Export XLSX" button to write the table to XLSX.
 
 ```jsx live
 /* The live editor requires this function wrapper */
 function Tabeller(props) {
+  const [__html, setHTML] = React.useState("");
 
-  /* Starting CSV data -- change data here */
-  const csv = `\
+  /* Load sample data once */
+  React.useEffect(() => {
+    /* Starting CSV data -- change data here */
+    const csv = `\
 This,is,a,Test
 வணக்கம்,สวัสดี,你好,가지마
 1,2,3,4`;
 
-  /* Parse CSV into a workbook object */
-  const wb = XLSX.read(csv, {type: "string"});
+    /* Parse CSV into a workbook object */
+    const wb = XLSX.read(csv, {type: "string"});
 
-  /* Get the worksheet (default name "Sheet1") */
-  const ws = wb.Sheets.Sheet1;
+    /* Get the worksheet (default name "Sheet1") */
+    const ws = wb.Sheets.Sheet1;
 
-  /* Create HTML table */
-  const id = "tabeller"; // HTML TABLE ID
-  const __html = XLSX.utils.sheet_to_html(ws, { id });
+    /* Create HTML table */
+    setHTML(XLSX.utils.sheet_to_html(ws, { id: "tabeller" }));
+  }, []);
 
   return (<>
+    {/* Import Button */}
+    <input type="file" onChange={async(e) => {
+      /* get data as an ArrayBuffer */
+      const file = e.target.files[0];
+      const data = await file.arrayBuffer();
 
-    {/* Show HTML preview */}
-    <div dangerouslySetInnerHTML={{__html}}/>
+      /* parse and load first worksheet */
+      const wb = XLSX.read(data);
+      const ws = wb.Sheets[wb.SheetNames[0]];
+      setHTML(XLSX.utils.sheet_to_html(ws, { id: "tabeller" }));
+    }}/>
 
     {/* Export Button */}
     <button onClick={() => {
 
       /* Create worksheet from HTML DOM TABLE */
-      const table = document.getElementById(id);
+      const table = document.getElementById("tabeller");
       const wb = XLSX.utils.table_to_book(table);
 
       /* Export to file (start a download) */
       XLSX.writeFile(wb, "SheetJSIntro.xlsx");
-    }}>
-      <b>Export XLSX!</b>
-    </button>
+    }}><b>Export XLSX!</b></button>
 
+    {/* Show HTML preview */}
+    <div dangerouslySetInnerHTML={{__html}}/>
   </>);
-
 }
 ```