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What is SheetXL

All the tools you need to bring spreadsheet power into your application.

  • A Spreadsheet SDK: A headless spreadsheet engine with full Excel-like logic.
  • A Data Science Framework: Efficient APIs for modeling and analyzing large datasets.
  • UI Component Library: Composable components to build any interface you need.
  • Embeddable App: A full-featured, open-source spreadsheet ready to use or extend.

Core Capabilities​

A Spreadsheet SDK ⚙️​

Go beyond basic tables with a powerful calculation engine supporting 400+ Excel functions, data validation, and complex cell formatting.

Scale to Billions of Cells 🚀​

Our vectored columnar data store and virtualized rendering engine is built to handle billions of cells and massive workbooks without breaking a sweat.

Use only what you need 🧱​

Start with our headless SDK in a Node.js environment, embed our React components to build a custom UI, or drop in a complete, pre-built application.

Live Scripting ⚡​

Add custom functions, data validation, and complex logic on the fly using TypeScript—no build step required. It's a uniquely powerful way to prototype and extend functionality instantly.

Our Ecosystem​

SheetXL is designed as a set of composable packages to give you maximum flexibility.

@sheetxl/sdk (The Core API)​

This is the heart of everything—a headless, framework-agnostic library that contains all the spreadsheet logic. You can use it anywhere, from a web worker to a Node.js server.

@sheetxl/react & @sheetxl/grid-react (UI Components)​

A rich set of React components for building your own custom spreadsheet interfaces. You get full control over the look and feel.

@sheetxl/studio-mui (The Full App)​

The fastest way to get started. It's a complete, embeddable spreadsheet application built with our components that you can drop into your project in minutes.