--- sidebar_position: 9 title: Bundlers --- import current from '/version.js'; import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; SheetJS predates ECMAScript modules and bundler tools like Webpack. As best practices have evolved, stress testing SheetJS libraries have revealed bugs in the respective bundlers. This demo collects various notes and provides basic examples. Issues should be reported to the respective bundler projects. ## Parcel Parcel Bundler should play nice with SheetJS out of the box. Errors of the form `Could not statically evaluate fs call` stem from a [parcel bug](https://github.com/parcel-bundler/parcel/pull/523). Upgrade to Parcel version 1.5.0 or later.
Complete Example (click to show) This demo follows the [Presidents Example](../../example). 1) Save the following to `index.html`: ```html title="index.html"

SheetJS export demo

``` 2) Install the SheetJS node module: 
{`\
$ npm install --save https://cdn.sheetjs.com/xlsx-${current}/xlsx-${current}.tgz`}

{`\
$ pnpm install --save https://cdn.sheetjs.com/xlsx-${current}/xlsx-${current}.tgz`}

{`\
$ yarn add --save https://cdn.sheetjs.com/xlsx-${current}/xlsx-${current}.tgz`}
3) Run the Parcel CLI tool: ```bash npx -y parcel index.html ``` 4) Access the page listed in the output (typically `http://localhost:1234`) and click the "Click to Export!" button to generate a file.