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This commit is contained in:
parent
86d7a8f06a
commit
aa7cc47197
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@ -26,7 +26,7 @@ The ["Live Demo"](#live-demo) section includes a working demo in this page!
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["Run the Demo Locally"](#run-the-demo-locally) shows how to run the workflow in
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iOS / Android apps, desktop apps, NodeJS scripts and other environments.
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The follow sequence diagram shows the process:
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The following sequence diagram shows the process:
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```mermaid
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sequenceDiagram
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@ -934,7 +934,7 @@ Save the following to `package.json`:
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"version": "0.0.0",
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"main": "SheetJSNW.html",
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"dependencies": {
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"nw": "~0.66.0",
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"nw": "0.77.0",
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"xlsx": "https://cdn.sheetjs.com/xlsx-${current}/xlsx-${current}.tgz"
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}
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}`}
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@ -16,8 +16,8 @@ Web Workers and future APIs.
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### JavaScript is a powerful language for data processing
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The ["Common Spreadsheet Format"](/docs/csf/general) is a simple object
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representation of the core concepts of a workbook. The various functions in the
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library provide low-level tools for working with the object.
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representation of the core concepts of a workbook. [Utilities](/docs/api/utilities/)
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provide low-level tools for working with the object.
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For friendly JS processing, there are utility functions for converting parts of
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a worksheet to/from an Array of Arrays. The [Tutorial](/docs/getting-started/example)
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@ -35,3 +35,10 @@ with the data ecosystem.
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To the greatest extent possible, data processing code should not have to worry
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about the specific file formats involved.
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### Data processing should be confidential
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All SheetJS-related methods run locally. No data is sent to a third party in
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processing data. No telemetry is collected.
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SheetJS libraries are regularly used in offline scenarios to process personally
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identifiable information (PII) and other classified data.
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@ -8,11 +8,19 @@ import DocCardList from '@theme/DocCardList';
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import {useCurrentSidebarCategory} from '@docusaurus/theme-common';
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SheetJS libraries are commonly used in data pipelines for processing personally
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identifiable information (PII). The libraries never attempt to perform network
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requests and never collect telemetry.
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identifiable information (PII).
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**Libraries never attempt to make network requests and never collect telemetry.**
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In practice, there are many interesting networking use cases including server
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processing of user-submitted files and fetching files from an external source.
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When processing data from an external source, a platform-specific operation will
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obtain binary data and SheetJS libraries will process the data.
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When exporting data, SheetJS libraries will generate raw data and
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platform-specific operations will distribute the data.
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The demos in this section cover common use cases:
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<ul>{useCurrentSidebarCategory().items.map((item, index) => {
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@ -1,21 +1,36 @@
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---
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title: Lume
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sidebar_label: Lume
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description: Make static websites from spreadsheets using Lume. Seamlessly integrate data into your website using SheetJS. Illuminate data without leaving the comfort of Excel.
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pagination_prev: demos/net/index
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pagination_next: demos/mobile/index
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sidebar_custom_props:
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type: native
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---
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Lume is a lightweight, fast and flexible static site generator.
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# Illuminating Data with Lume
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The official [Sheets plugin](https://lume.land/plugins/sheets/) uses SheetJS to
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load data from spreadsheets. New users should consult the official docs.
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[Lume](https://lume.land/) is a lightweight unopinionated static site generator.
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It has a rich ecosystem of JavaScript-powered plugins[^1]
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[SheetJS](https://sheetjs.com) is a JavaScript library for reading and writing
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data from spreadsheets.
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This demo uses Lume and SheetJS (through the official "Sheets" plugin) to pull
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data from a spreadsheet and display the content in an HTML table.
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The ["Complete Example"](#complete-example) section includes a complete website
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powered by an XLSX spreadsheet.
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## Integration Details
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The official "Sheets" plugin[^2] uses SheetJS to load data from spreadsheets.
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Under the hood, the plugin uses the SheetJS `read`[^3] method to parse files and
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the `sheet_to_json`[^4] method to generate arrays of objects.
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Lume supports refreshing data during development. The generated static sites
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include the raw data without referencing the underlying spreadsheet files.
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## Integration Details
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### Installation
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The `sheets` plugin can be imported and invoked in `_config.ts`:
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@ -33,19 +48,19 @@ site.use(sheets());
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export default site;
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```
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### Usage
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:::info pass
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:::note
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The official documentation includes notes for more advanced use cases.
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The lines are automatically added if `sheets` plugin is enabled during setup.
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:::
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### Usage
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Spreadsheet files added in the `_data` subdirectory are accessible from template
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files using the name stem.
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For example, [`pres.numbers`](https://sheetjs.com/pres.numbers) can be accessed
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using the variable `pres` in a template.
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For example, [`pres.xlsx`](https://sheetjs.com/pres.xlsx) can be accessed using
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the variable `pres` in a template.
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#### Single-Sheet Workbooks
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@ -81,9 +96,9 @@ _Reading all Worksheets_
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The default behavior, when workbooks have multiple sheets, is to present objects
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whose keys are worksheet names and whose values are arrays of row objects.
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For example, if `pres.numbers` had a sheet named `"Presidents"` and another
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sheet named `"VicePresidents"`, then the following snippet would print data
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from the `"Presidents"` sheet:
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For example, if `pres.xlsx` had a sheet named `"Presidents"` and another sheet
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named `"VicePresidents"`, then the following snippet would print data from the
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`"Presidents"` sheet:
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```liquid title="multi.njk"
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<table><thead><th>Name</th><th>Index</th></thead>
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@ -98,18 +113,35 @@ from the `"Presidents"` sheet:
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</table>
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```
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#### File Formats
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As explained in the official plugin documentation[^5], the loader loads XLSX.
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NUMBERS, and CSV files. Other extensions can be added through the `extensions`
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property in the argument to the `sheets` plugin:
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```ts
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site.use(sheets({
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// highlight-next-line
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extensions: [".xlsx", ".xlsb", ".xls"]
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}));
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```
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## Complete Example
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:::note
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This was tested against `lume v1.16.2` on 2023 April 18.
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This was tested against `lume v1.17.5` on 2023 June 25.
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This example uses the Nunjucks template format. Lume plugins support additional
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template formats, including Markdown and JSX.
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:::
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### Initial Setup
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0) Install Deno[^6]
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1) Create a stock site:
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```bash
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@ -126,15 +158,14 @@ When prompted, enter the following options:
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The project will be configured and modules will be installed.
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2) Download <https://sheetjs.com/pres.numbers> and place in a `_data` folder:
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2) Download <https://sheetjs.com/pres.xlsx> and place in a `_data` folder:
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```bash
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mkdir -p _data
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curl -L -o _data/pres.numbers https://sheetjs.com/pres.numbers
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curl -L -o _data/pres.xlsx https://sheetjs.com/pres.xlsx
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```
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3) Create a `index.njk` file that references the file. Since the file is
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`pres.numbers`, the parameter name is `pres`:
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3) Create a `index.njk` file that references the file:
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```liquid title="index.njk"
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<h2>Presidents</h2>
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@ -150,35 +181,51 @@ curl -L -o _data/pres.numbers https://sheetjs.com/pres.numbers
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</table>
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```
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Since the file name is `pres.xlsx`, the parameter name is `pres`:
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### Live Refresh
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4) Run the development server:
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```bash
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deno task lume --serve
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deno task serve --port 7262
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```
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To verify it works, access `http://localhost:3000` from your web browser. Open
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`_data/pres.numbers` and add a new row to the bottom of the sheet. The page will
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refresh and show the new contents.
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To verify it works, access `http://localhost:7262` from your web browser. The
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page will show the contents of the spreadsheet.
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:::caution
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5) While the server is still running, open `_data/pres.xlsx` in a spreadsheet
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editor and add a new row at the bottom of the sheet.
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There is a known bug with Deno hot reloading. If the page does not refresh
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automatically, upgrade with `deno upgrade` and restart the development server.
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The page will refresh and show the new contents.
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:::
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### Static Site
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5) Stop the server (press `CTRL+C` in the terminal window) and run
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6) Stop the server (press `CTRL+C` in the terminal window) and run
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```bash
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deno task lume
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```
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This will create a static site in the `_site` folder, which can be served with:
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This will create a static site in the `_site` folder
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7) Test the generated site by running
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```bash
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npx http-server _site
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```
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Accessing the page `http://localhost:8080` will show the page contents.
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The program will display a URL (typically `http://localhost:8080`). Accessing
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the page will show the contents of the spreadsheet.
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View the page source and confirm that the page only includes an HTML table. No
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scripts are included in this page.
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This site is self-contained and ready for deployment!
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[^1]: See ["Plugins"](https://lume.land/plugins/?status=all) in the Lume documentation
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[^2]: See ["Sheets"](https://lume.land/plugins/sheets/) in the Lume documentation
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[^3]: See [`read` in "Reading Files"](/docs/api/parse-options)
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[^4]: See [`sheet_to_json` in "Utilities"](/docs/api/utilities/array#array-output)
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[^5]: See ["Formats"](https://lume.land/plugins/sheets/#formats) in the Lume documentation
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[^6]: See ["Installation"](https://deno.com/manual/getting_started/installation) in the Deno documentation
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@ -38,15 +38,18 @@ the browser refreshes to show the new content.
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:::note Recommendation
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It is strongly recommended to use a framework that provides an official plugin
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for working with SheetJS. Lume is a great choice for getting started. GatsbyJS
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is excellent for teams well-versed in the React JS framework.
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for working with SheetJS.
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Lume is a great choice for lightweight sites.
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GatsbyJS is excellent for teams well-versed in the ReactJS framework.
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:::
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### Official
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Some frameworks provide official extensions They are strongly recommended for
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greenfield projects. Demos:
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Some frameworks provide official extensions. They are strongly recommended for
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greenfield projects.
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<ul>{useCurrentSidebarCategory().items.filter(item => item.customProps?.type == "native").map(item => {
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const listyle = (item.customProps?.icon) ? {
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@ -61,7 +64,7 @@ greenfield projects. Demos:
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### Bundlers
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Bundlers can run JS code and process assets during development and during site
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builds. Custom plugins can extract data from spreadsheets. Demos:
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builds. Custom plugins can extract data from spreadsheets.
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<ul>{useCurrentSidebarCategory().items.filter(item => item.customProps?.type == "bundler").map(item => {
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const listyle = (item.customProps?.icon) ? {
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@ -7,9 +7,12 @@ pagination_next: demos/data/index
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import DocCardList from '@theme/DocCardList';
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import {useCurrentSidebarCategory} from '@docusaurus/theme-common';
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Web technologies like JavaScript and HTML have been adapted to the traditional
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app space. Typically these frameworks bundle a JavaScript engine as well as a
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windowing framework. SheetJS is compatible with many app frameworks.
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Web technologies including JavaScript and HTML can power traditional software.
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## Desktop Apps
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Desktop app frameworks bundle a JavaScript engine and a windowing framework to
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enable graphical apps. SheetJS is compatible with many app frameworks.
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Demos for common desktop tools are included in separate pages:
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@ -22,17 +25,6 @@ Demos for common desktop tools are included in separate pages:
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</li>);
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})}</ul>
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Demos for common command-line tools are included in separate pages:
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<ul>{useCurrentSidebarCategory().items.filter(item => item.customProps?.cli).map((item, index) => {
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const listyle = (item.customProps?.icon) ? {
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listStyleImage: `url("${item.customProps.icon}")`
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} : {};
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return (<li style={listyle} {...(item.customProps?.class ? {className: item.customProps.class}: {})}>
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<a href={item.href}>{item.label}</a>{item.customProps?.summary && (" - " + item.customProps.summary)}
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</li>);
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})}</ul>
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:::note Desktop Recommendation
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Electron is the most established and widely-used framework. With deep support
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@ -45,3 +37,19 @@ other programming languages.
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Frameworks like React Native generate applications that use native UI elements.
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:::
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## Command-Line Tools
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Command-line tools bundle a JavaScript engine and a system runtime. The runtime
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provides low-level access to computer resources.
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Demos for common command-line tools are included in separate pages:
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<ul>{useCurrentSidebarCategory().items.filter(item => item.customProps?.cli).map((item, index) => {
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const listyle = (item.customProps?.icon) ? {
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listStyleImage: `url("${item.customProps.icon}")`
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} : {};
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return (<li style={listyle} {...(item.customProps?.class ? {className: item.customProps.class}: {})}>
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<a href={item.href}>{item.label}</a>{item.customProps?.summary && (" - " + item.customProps.summary)}
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</li>);
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})}</ul>
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|
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@ -23,7 +23,7 @@ Clipboard data can be read from a `paste` event, accessible from the event
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```js
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document.onpaste = function(e) {
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/* get TSV */
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/* get HTML */
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var str = e.clipboardData.getData('text/html');
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/* parse */
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var wb = XLSX.read(str, {type: "string"});
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|
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@ -12,7 +12,7 @@ There is no standard cross-platform approach to read and write files and data.
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the file read and write operations. Not all platforms support the APIs used in
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the library.
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The demos in this section cover APIs that are not supported out-of-the-box:
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Demos in this section cover local APIs that are not embedded in the library:
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<ul>{useCurrentSidebarCategory().items.map((item, index) => {
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const listyle = (item.customProps?.icon) ? {
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@ -62,6 +62,7 @@ function SheetJSChoisissez() {
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const [msg, setMsg] = React.useState("Press the button to show a Chooser");
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const btn = useRef(), tbl = useRef();
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React.useEffect(() => {
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if(typeof Dropbox == "undefined") return setMsg("Dropbox is not defined");
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/* create button */
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var button = Dropbox.createChooseButton({
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/* required settings */
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@ -131,6 +132,7 @@ function SheetJSEnregistrez() {
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const [msg, setMsg] = React.useState("Press the button to write XLS file");
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const btn = useRef(), tbl = useRef();
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React.useEffect(async() => {
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if(typeof Dropbox == "undefined") return setMsg("Dropbox is not defined");
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/* fetch data and write table (sample data) */
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const f = await(await fetch("https://sheetjs.com/pres.xlsx")).arrayBuffer();
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const wb = XLSX.read(f);
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|
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@ -12,7 +12,7 @@ language for writing extensions for apps. Some applications like Chromium use V8
|
|||
while others use engines that only support ES3 JavaScript. With conservative use
|
||||
of modern language features, SheetJS can be used in many app extensions.
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||||
|
||||
Demos for common apps are included in separate pages:
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||||
Demos for common applications are included in separate pages:
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||||
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||||
<ul>{useCurrentSidebarCategory().items.map((item, index) => {
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const listyle = (item.customProps?.icon) ? {
|
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|
|
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@ -15,8 +15,10 @@ been integrated into the ReactJS framework and other foundational JS libraries.
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|||
JS Engines have improved over the years, but there are some hard limits to
|
||||
browser support using traditional methods of data processing. Vendors have
|
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introduced APIs and techniques for representing and processing very large binary
|
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and textual files. Since many of the techniques only work in a few engines, they
|
||||
are recommended only when the traditional approaches falter:
|
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and textual files.
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Since many of the techniques only work in a few engines, they are not embedded
|
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in the library. They are recommended only when traditional approaches falter.
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<ul>{useCurrentSidebarCategory().items.map((item, index) => {
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const listyle = (item.customProps?.icon) ? {
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|
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File diff suppressed because it is too large
Load Diff
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@ -146,7 +146,7 @@ This script will generate `SheetJSVBANeu.xlsm`.
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### Extracting VBA Blobs
|
||||
|
||||
To obtain the blob, `bookVBA: 1` must be set in the `read` or `readFile` call.
|
||||
To extract blobs, `bookVBA: true` must be set in the `read` or `readFile` call.
|
||||
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||||
The following example extracts the embedded VBA blob in a workbook:
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||||
|
||||
|
|
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@ -19,7 +19,7 @@ requirement in the user interface. For example, if the last worksheet is deleted
|
|||
in the program, Apple Numbers will automatically create a new blank sheet.
|
||||
|
||||
The SheetJS [write functions](/docs/api/write-options) enforce the requirement.
|
||||
They will throw errors when trying to export empty worksheets.
|
||||
They will throw errors when trying to export empty workbooks.
|
||||
|
||||
|
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**Append a Worksheet to a Workbook**
|
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|
|
@ -41,7 +41,7 @@ var new_name = XLSX.utils.book_append_sheet(workbook, worksheet, name, true);
|
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|
||||
If the fourth argument is `true`, the function will start with the specified
|
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worksheet name. If the sheet name exists in the workbook, a new worksheet name
|
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will be chosen by finding the name stem and incrementing the counter:
|
||||
will be chosen by finding the name stem and incrementing the counter.
|
||||
|
||||
```js
|
||||
XLSX.utils.book_append_sheet(workbook, sheetA, "Sheet2", true); // Sheet2
|
||||
|
|
|
|||
|
|
@ -282,6 +282,25 @@ import { writeFile } from 'xlsx'; // writeFile will use the global `saveAs`
|
|||
|
||||
</details>
|
||||
|
||||
#### "Cannot save file" in NodeJS
|
||||
|
||||
The `fs` module is automatically loaded in scripts using `require`:
|
||||
|
||||
```js
|
||||
var XLSX = require("xlsx"); // automatically loads `fs`
|
||||
```
|
||||
|
||||
Using the [ESM import](/docs/getting-started/installation/nodejs/#esm-import),
|
||||
the `fs` module must be imported and passed to the library:
|
||||
|
||||
```js
|
||||
import * as XLSX from 'xlsx';
|
||||
|
||||
/* load 'fs' for readFile and writeFile support */
|
||||
import * as fs from 'fs';
|
||||
XLSX.set_fs(fs);
|
||||
```
|
||||
|
||||
## Data Issues
|
||||
|
||||
#### Generated XLSX files are very large!
|
||||
|
|
|
|||
|
|
@ -98,7 +98,7 @@ The test suite also includes tests for various time zones. To change
|
|||
the timezone locally, set the `TZ` environment variable:
|
||||
|
||||
```bash
|
||||
$ env TZ="Asia/Kolkata" WTF=1 make test_misc
|
||||
env TZ="Asia/Kolkata" WTF=1 make test_misc
|
||||
```
|
||||
|
||||
</details>
|
||||
|
|
|
|||
|
|
@ -8,6 +8,9 @@ hide_table_of_contents: true
|
|||
SheetJS Community Edition is licensed under the "Apache 2.0 License". All rights
|
||||
not explicitly granted by the Apache 2.0 License are reserved by SheetJS LLC.
|
||||
|
||||
The Apache 2.0 License is a "permissive" license which allows commercial use but
|
||||
requires attribution.
|
||||
|
||||
#### Required Attribution
|
||||
|
||||
When integrating SheetJS CE in a project or service, the following text must be
|
||||
|
|
|
|||
|
|
@ -9,10 +9,10 @@ Some of our original research is documented at <https://oss.sheetjs.com/notes/>
|
|||
|
||||
The specifications list is non-exhaustive.
|
||||
|
||||
- Worksheet File Format (From Lotus) December 1984
|
||||
- Worksheet File Format (From Lotus) December 1984[^1]
|
||||
- Open Document Format for Office Applications Version 1.3
|
||||
|
||||
:::info
|
||||
:::info pass
|
||||
|
||||
The primary specifications for XLSX are:
|
||||
|
||||
|
|
@ -26,9 +26,9 @@ most of the public XLSX document community use the spec names interchangeably.
|
|||
|
||||
## Open Specifications Promise
|
||||
|
||||
Lotus released their "Worksheet File Format" documentation into the Public
|
||||
Domain. Microsoft opted for the "Open Specifications Promise", a covenant not
|
||||
to sue. The documentation that falls under the promise are listed below.
|
||||
Lotus dedicated the "Worksheet File Format" documentation to the Public Domain.
|
||||
Microsoft opted for the "Open Specifications Promise", a covenant not to sue.
|
||||
The documentation that falls under the promise are listed below.
|
||||
|
||||
<details><summary><b>Specifications</b> (click to show)</summary>
|
||||
|
||||
|
|
@ -60,3 +60,7 @@ to sue. The documentation that falls under the promise are listed below.
|
|||
|
||||
- ISBN 1556155212 "Excel Software Development Kit Version 4"
|
||||
- ISBN 1556156324 "Excel Developer's Kit Version 5"
|
||||
|
||||
[^1]: The original FTP server is no longer available, but the content has been
|
||||
mirrored at <https://oss.sheetjs.com/notes/lotus/>. Lotus Corporation
|
||||
dedicated the content to the public domain in 1984.
|
||||
Loading…
Reference in New Issue