---
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summary: Classic pages with simple `}
:::tip pass
[Watch the repo](https://git.sheetjs.com/SheetJS/sheetjs) or subscribe to the
[RSS feed](https://git.sheetjs.com/sheetjs/sheetjs/tags.rss) to be notified when
new versions are released!
:::
:::warning
A number of services host older versions of the SheetJS libraries. Due to
syncing issues, they are generally out of date.
They are known CDN bugs.
is the authoritative source for SheetJS modules.
:::
## Browser Scripts
`xlsx.full.min.js` is the complete standalone script. It includes support for
reading and writing many spreadsheet formats.
{`\
`}
A slimmer build is generated at `dist/xlsx.mini.min.js`. Compared to full build:
- codepage library skipped (no support for XLS encodings)
- no support for XLSB / XLS / Lotus 1-2-3 / SpreadsheetML 2003 / Numbers
- node stream utils removed
How to integrate the mini build (click to show)
Replace references to `xlsx.full.min.js` with `xlsx.mini.min.js`. Starting from
scratch, a single script tag should be added at the top of the HTML page:
{`\
`}
### Internet Explorer and Older Browsers
For broad compatibility with JavaScript engines, the library is written using
ECMAScript 3 language dialect. A "shim" script provides implementations of
functions for older browsers and environments.
Due to SSL compatibility issues, older versions of IE will not be able to
use the CDN scripts directly. They should be downloaded and saved to a public
directory in the site:
Add a `script` reference to the shim before the standalone script:
```html
```
### Web Workers
The standalone scripts can be loaded using `importScripts` at the top of the
worker scripts:
{`\
importScripts("https://cdn.sheetjs.com/xlsx-${current}/package/dist/shim.min.js");
importScripts("https://cdn.sheetjs.com/xlsx-${current}/package/dist/xlsx.full.min.js");`}
## ECMAScript Module Imports
:::caution
This section refers to imports using `script type="module"`. For imports in
modern projects using Webpack or React or Angular or VueJS, the installation is
described [in the next section](/docs/getting-started/installation/frameworks).
:::
The ECMAScript Module build is saved to `xlsx.mjs` and can be directly added to
a page with a `script` tag using `type="module"`:
{`\
`}
If Encoding support is required, `cpexcel.full.mjs` must be manually imported:
{`\
`}
Dynamic imports with `import()` can be used in data export scenarios. This
example will download the library only when the export button is pressed:
{`\
`}
Web Worker support is noted in [the demo](/docs/demos/bigdata/worker#installation)
## Bower
:::caution
Bower is deprecated and the maintainers recommend using other tools.
:::
The Bower package manager plays nice with the CDN tarballs:
{`\
npx bower install https://cdn.sheetjs.com/xlsx-${current}/xlsx-${current}.tgz`}
Bower will place the standalone scripts in `bower_components/js-xlsx/dist/`