--- sidebar_position: 4 sidebar_custom_props: summary: Server-side and other frameworks using NodeJS modules --- import current from '/version.js'; # NodeJS import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; Tarballs are available on .
Each individual version can be referenced using a similar URL pattern.
https://cdn.sheetjs.com/xlsx-{current}/xlsx-{current}.tgz is the URL for {current}
## Installation Tarballs can be directly installed using a package manager:
{`\
npm i --save https://cdn.sheetjs.com/xlsx-${current}/xlsx-${current}.tgz`}
{`\
pnpm install https://cdn.sheetjs.com/xlsx-${current}/xlsx-${current}.tgz`}
{`\
yarn add https://cdn.sheetjs.com/xlsx-${current}/xlsx-${current}.tgz`}
:::warning Older releases are technically available on the public npm registry as `xlsx`, but the registry is out of date. The latest version on that registry is 0.18.5 This is a known registry bug is the authoritative source for SheetJS scripts. For existing projects, the easiest approach is to uninstall and reinstall:
{`\
npm rm --save xlsx
npm i --save file:vendor/xlsx-${current}.tgz`}
{`\
pnpm rm xlsx
pnpm install file:vendor/xlsx-${current}.tgz`}
{`\
yarn remove xlsx
yarn add file:vendor/xlsx-${current}.tgz`}
::: ### Vendoring For general stability, "vendoring" modules is the recommended approach:
1) Download the tarball (xlsx-{current}.tgz) for the desired version. The current version is available at https://cdn.sheetjs.com/xlsx-{current}/xlsx-{current}.tgz

2) Create a `vendor` subfolder at the root of your project and move the tarball to that folder. Add it to your project repository. 3) Install the tarball using a package manager:
{`\
npm i --save file:vendor/xlsx-${current}.tgz`}
{`\
pnpm install file:vendor/xlsx-${current}.tgz`}
{`\
yarn add  file:vendor/xlsx-${current}.tgz`}
The package will be installed and accessible as `xlsx`. ## Usage #### CommonJS `require` By default, the module supports `require` and it will automatically add support for streams and filesystem access: ```js var XLSX = require("xlsx"); ``` #### ESM `import` The module also ships with `xlsx.mjs` for use with `import`. The `mjs` version does not automatically load native node modules, so they must be added manually: ```js import * as XLSX from 'xlsx/xlsx.mjs'; /* load 'fs' for readFile and writeFile support */ import * as fs from 'fs'; XLSX.set_fs(fs); /* load 'stream' for stream support */ import { Readable } from 'stream'; XLSX.stream.set_readable(Readable); /* load the codepage support library for extended support with older formats */ import * as cpexcel from 'xlsx/dist/cpexcel.full.mjs'; XLSX.set_cptable(cpexcel); ```