Spreadsheets

Main engine of the IronCalc ecosystem

🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives.

Free, open-source AI Office suite: Docs, Sheets, Slides, PDF, Markdown and HTML editors with a built-in AI agent, plus a `genoffice` CLI and agent skill so Claude Code, Codex and Cursor can create and edit real .docx/.xlsx/.pptx files locally. Bring your own key. macOS, Windows & Linux.

A terminal spreadsheet multitool for discovering and arranging data

No-code platform that turns any database into a smart spreadsheet (alternative to Airtable and Smartsheet).

Zero-dependency spreadsheet engine. Read & write XLSX, CSV, ODS. Pure TypeScript, works everywhere.

A Python module for creating Excel XLSX files.

⚡️ A practical visualization library for tabular analysis.

Read and write spreadsheet files (CSV, XLSX and ODS), in a fast and scalable way

A fast terminal Excel viewer with an interactive TUI. Features full-text search, formula display, lazy loading for large files, clipboard support, and export to CSV/JSON. Built with Rust and ratatui.

SpreadCheetah is a high-performance .NET library for generating spreadsheet (Microsoft Excel XLSX) files.

EPPlus-Excel spreadsheets for .NET

An Airtable-like / Excel-like component to create beautiful spreadsheets.

The fastest open-source data table for web.

A drop-in javascript spreadsheet library that provides rich features like Excel and Google Sheets

This MCP server integrates with your Google Drive and Google Sheets, to enable creating and modifying spreadsheets.

Python binding for Rust's library for reading excel and odf file - calamine.

Experimental Excel sidebar agent add-in. Multi-model. Powered by Pi.

Simple excel-like datasheet Blazor component

Google Sheets Python API

JavaScript Data Grid / Data Table with a Spreadsheet Look & Feel. Works with React, Angular, and Vue. Supported by the Handsontable team ⚡

HyperFormula is an open-source headless spreadsheet for business web apps. It comes with over 400 formulas, CRUD operations, undo-redo, clipboard support, and sorting.

A C library for creating Excel XLSX files.

The Ruby Spreadsheet by ywesee GmbH

Pure go library for creating and processing Office Word (.docx), Excel (.xlsx) and Powerpoint (.pptx) documents

Jspreadsheet is a lightweight JavaScript data grid component for creating interactive data grids with advanced spreadsheet controls.

A curated list of grid(table) libraries and resources that developers may find useful.

jamovi - open software to bridge the gap between researcher and statistician

Spreadsheet Architect is a library that allows you to create XLSX, ODS, or CSV spreadsheets super easily from ActiveRecord relations, plain Ruby objects, or tabular data.

A pure rust library for reading and writing spreadsheet files

Fast and powerful .NET spreadsheet component, support data format, freeze, outline, formula calculation, chart, script execution and etc. Compatible with Excel 2007 (.xlsx) format and working on .NET 3.5 (or client profile), WPF and Android platform.

Read and write Office Excel documents from Clojure

sc-im - Spreadsheet Calculator Improvised -- An ncurses spreadsheet program for terminal

Simple, customizable yet performant spreadsheet for React

📊📈 Serves up Pandas dataframes via the Django REST Framework for use in client-side (i.e. d3.js) visualizations and offline analysis (e.g. Excel)

Read excel files (.xls and .xlsx) into R 🖇

A native port of Lotus 1-2-3 to Linux.

Add spreadsheet-like behavior to your React app

The project has been migrated to @wolf-table/table https://github.com/wolf-table/table

Parse and evaluate MS Excel formula in javascript.

Google Spreadsheets R API (reboot of the googlesheets package)

Excel-like data grid (table) component for React

Full configurable spreadsheet view user interfaces for iOS applications. With this framework, you can easily create complex layouts like schedule, gantt chart or timetable as if you are using Excel.

Excel-like Experience for Web Apps (The performant & reliable Vanilla Javascript data grid with Excel-like controls)

PHP Excel Helper - Write and read Spreadsheet with easy way based on PhpSpreadsheet

Old version. Visualise data and edit JavaScript code using a spreadsheet interface.

Google Sheets Python API v4

Python library to interact with Google Sheets V4 API

Unity-QuickSheet enables you to use spreadsheet file data within Unity editor.

Reusable GridView with excellent performance and customization that can be time table, spreadsheet, paging and more.

Jupyter handsontable integration

An Excel-like grid component for React with custom cell editors, performant scroll & resizable columns

Spreadsheet CollectionViewLayout in Swift. Fully customizable. 🔶

Do you have enough savings to fund your business?

Google Go (golang) library for reading and writing spreadsheet files on Google Docs.

Easy datasheet management for C# and Unity. Supports Excel, Google Sheet, JSON and CSV format.

:bar_chart: Cross-platform user-friendly xlsx library for C++11+

A proofreader for your data