Open Source Spreadsheet Software
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Spreadsheet Software
View 108 business solutionsBrowse free open source Spreadsheet software and projects below. Use the toggles on the left to filter open source Spreadsheet software by OS, license, language, programming language, and project status.
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Apache OpenOffice
The free and Open Source productivity suite
Free alternative for Office productivity tools: Apache OpenOffice - formerly known as OpenOffice.org - is an open-source office productivity software suite containing word processor, spreadsheet, presentation, graphics, formula editor, and database management applications. OpenOffice is available in many languages, works on all common computers, stores data in ODF - the international open standard format - and is able to read and write files in other formats, included the format used by the most common office suite packages. OpenOffice is also able to export files in PDF format. OpenOffice has supported extensions, in a similar manner to Mozilla Firefox, making easy to add new functionality to an existing OpenOffice installation. -
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GridCraft
Open-source, clean-room spreadsheet (Microsoft Excel-style) in Rust
GridCraft is an open-source spreadsheet application built in Rust that provides an alternative to Microsoft Excel for managing, analyzing, and visualizing data. The software features a familiar ribbon-based interface with support for formulas, formatting, tables, charts, PivotTables, and spreadsheet navigation tools. It supports Microsoft Excel XLSX files as its native format, along with CSV and TSV files, and can import worksheet data from XLSB and ODS formats. GridCraft includes more than 500 spreadsheet functions, dynamic arrays, conditional formatting, data validation, sorting, filtering, and advanced calculation capabilities. The application also provides a command-line interface, JSON control channel, and Model Context Protocol (MCP) server that allow AI agents to create, modify, analyze, and automate spreadsheets. Available for Windows, macOS, Linux, FreeBSD, and web browsers, GridCraft operates without subscriptions or telemetry and is currently in alpha development. -
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Technical analysis library with indicators like ADX, MACD, RSI, Stochastic and TRIX, plus candlestick pattern recognition. Docs: https://ta-lib.org Available natively in C/C++, Java, Rust and C# with wrappers for python, R and many other ecosystems. MOVED TO GITHUB: https://github.com/TA-Lib/ta-lib . No further support is provided on SourceForge. Release 0.4.0 is very outdated, please check github for the most recent release.
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PhpSpreadsheet
A pure PHP library for reading and writing spreadsheet files
PhpSpreadsheet is a library written in pure PHP and offers a set of classes that allow you to read and write various spreadsheet file formats such as Excel and LibreOffice Calc. PhpSpreadsheet is a library written in pure PHP and offers a set of classes that allow you to read and write various spreadsheet file formats such as Excel and LibreOffice Calc. Support for PHP versions will only be maintained for a period of six months beyond the end of life of that PHP version. Use composer to install PhpSpreadsheet into your project. Or also download the documentation and samples if you plan to use them. A good way to get started is to run some of the samples. Don't forget to download them via --prefer-source composer flag. And then serve them via PHP built-in webserver. PhpSpreadsheet relies on Composer autoloader. So before working with PhpSpreadsheet in standalone, be sure to run composer install. -
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NocoDB
Open Source Airtable Alternative
NocoDB is an open source #NoCode platform that turns any database into a smart spreadsheet. It is free & self-hostable. Let your imagination be thy limit. Create unlimited grid view, gallery view, form view from your own data. Search, sort, filter columns and rows with ultra ease. Collaborate just like spreadsheets. Invite your team with fine-grained Access Control. Share views publicly and also with password protection. Build automation with you favorite apps: Microsoft Teams Slack, Discord, Whatsapp, Twilio, Email & SMS. -
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JExcelApi is a java library which provides the ability to read, write, and modify Microsoft Excel spreadsheets. This project mirrors the files on http://www.jexcelapi.org, which has been known to go down on occasion.
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CryptPad is an open-source, end-to-end encrypted collaborative office suite developed by XWiki SAS. It offers a privacy-focused alternative to mainstream cloud-based productivity tools, enabling users to create, edit, and share documents securely without compromising data privacy. All content is encrypted client-side, ensuring that only authorized users can access the information. CryptPad supports various applications, including rich text documents, spreadsheets, presentations, code editing, kanban boards, polls, and whiteboards, facilitating real-time collaboration among teams. Users can access CryptPad without creating an account, and the platform also offers self-hosting options for organizations seeking full control over their data.
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ImportExcel
PowerShell module to import/export Excel spreadsheets, without Excel
ImportExcel is a popular PowerShell module that enables reading, writing, and manipulating Excel spreadsheets without requiring Microsoft Excel to be installed on the host. It exposes straightforward cmdlets like Import-Excel and Export-Excel that convert between Excel sheets and PowerShell objects, making it simple to pipeline tabular data into reporting and automation flows. Advanced features include adding and formatting tables, setting number/date formats, creating charts, and applying styling or conditional formatting programmatically. The module is optimized for performance (streaming where possible) and supports large datasets, making it useful for ETL tasks, automated reporting, and data analysis in pure PowerShell environments. It integrates well with scheduled jobs and CI pipelines where generating or consuming spreadsheets is part of an automated workflow. -
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Quadratic
Data science spreadsheet with Python & SQL
Quadratic enables your team to work together on data analysis to deliver better results, faster. You already know how to use a spreadsheet, but you’ve never had this much power before. Quadratic is a Web-based spreadsheet application that runs in the browser and as a native app (via Electron). Our goal is to build a spreadsheet that enables you to pull your data from its source (SaaS, Database, CSV, API, etc) and then work with that data using the most popular data science tools today (Python, Pandas, SQL, JS, Excel Formulas, etc). Quadratic has no environment to configure. The grid runs entirely in the browser with no backend service. This makes our grids completely portable and very easy to share. Quadratic has Python library support built-in. Bring the latest open-source tools directly to your spreadsheet. Quickly write code and see the output in full detail. No more squinting into a tiny terminal to see your data output. -
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XonGrid
Excel interpolation add-in
XonGrid is a free Excel library of functions to perform 1D, 2D, 3D, 4D and arbitrary dimension (ND) interpolations from scattered data. -
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Google Spreadsheets Python
Google Sheets Python API
gspread is a Python API for Google Sheets. A service account is a special type of Google account intended to represent a non-human user that needs to authenticate and be authorized to access data in Google APIs [sic]. Since it’s a separate account, by default it does not have access to any spreadsheet until you share it with this account. Just like any other Google account. To access spreadsheets via Google Sheets API you need to authenticate and authorize your application. Older versions of gspread have used oauth2client. Google has deprecated it in favor of google-auth. If you’re still using oauth2client credentials, the library will convert these to google-auth for you, but you can change your code to use the new credentials to make sure nothing breaks in the future. If you familiar with the Jupyter Notebook, Google Colaboratory is probably the easiest way to get started using gspread. -
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stylex-jsx
Full CSS support for JSX without compromises
Full, scoped and component-friendly CSS support for JSX (rendered on the server or the client). Code and docs are for v3 which we highly recommend you to try. Looking for styled-jsx v2? Switch to the v2 branch. Blazing fast and optimized CSS rules injection system based on the CSSOM APIs. Full CSS support, no tradeoffs in power. Runtime size of just 3kb (gzipped, from 12kb). Complete isolation: Selectors, animations, keyframes. Built-in CSS vendor prefixing. Very fast, minimal and efficient transpilation. High-performance runtime-CSS-injection when not server-rendering. Future-proof, equivalent to server-renderable "Shadow CSS". Source maps support. Dynamic styles and themes support. CSS Preprocessing via Plugins. To skip scoping entirely, you can make the global-ness of your styles explicit by adding global. To make a component's visual representation customizable from the outside world there are three options. -
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IronCalc
Main engine of the IronCalc ecosystem
IronCalc is a new, modern, work-in-progress spreadsheet engine and set of tools to work with spreadsheets in diverse settings. IronCalc is a lightweight, open-source computational engine designed for performing mathematical operations, formula calculations, and data-driven tasks. -
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Excel Writer
A standalone, portable Ada package for producing Excel spreadsheets
Excel_Out is a standalone, portable Ada package for writing Excel spreadsheets with basic formattings and formulas, easily and programmatically. Enables the automatic production of reports. No interaction needed with Excel or MS Office. More information on: http://excel-writer.sf.net Alire crate: https://alire.ada.dev/crates/excel_writer Mirror: https://github.com/zertovitch/excel-writer -
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xlsLib
C++/C library to construct Excel .xls files in code.
A multiplatform C++ library for dynamic generation of Excel .xls files containing multiple worksheets. Unlike .csv files, these can be directly opened by Excel and thus provide an excellent way to output large data sets that require further analysis. To see the latest changes, select "Files" and view the README text displayed at the bottom of that pane. IMPORTANT: Major changes are contained in the current SVN source. If you have time please try to use it or the xlslib-package-2.4.0b1.zip archive, and enter bug reports on any problems! Changes: - library specific strings now in their own namespace - iOS Objective-C library - most project files updated (MSVS etc) - C bridge now supports formulas Note: there is a related SF project, libxls, to read Excel files. -
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EtherCalc
Open source web spreadsheet
EtherCalc is an open source, web-based spreadsheet that allows multiple users to collaborate and work remotely and in real time. Users can edit the same spreadsheet at the same time, with changes instantly reflected on screen. It accepts various mathematical formulae and other functions, and supports several default text formatting directives as well. It can be used for just about anything you’d need a desktop spreadsheet for-- accounting, inventory, scheduling, list management and so much more. EtherCalc is the improved successor to SocialCalc, optimized for simultaneous editing. It’s a great open source alternative to Google sheets, without pesky logins or editing locks. -
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Jspreadsheet CE
Javascript plugin to create web-based tables & spreadsheets
Jspreadsheet CE is a lightweight Vanilla JavaScript data grid plugin to create amazing web-based interactive HTML tables, and spreadsheets compatible data grid with other spreadsheet software. You can create an online spreadsheet table from a JS array, JSON, CSV or XSLX files. You can copy from excel and paste straight to your Jspreadsheet CE spreadsheet and vice versa. It is very easy to integrate any third party JavaScript plugins to create your own custom columns, custom editors, and customize any feature into your application. Jspreadsheet CE has plenty of different input options through its native column types to cover the most common web-based application requirements. It is a complete solution for web data management. Create amazing applications with Jspreadsheet CE JavaScript spreadsheet. -
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Java CSV Library
Small, fast Java library for reading and writing CSV files
Java CSV is a small fast open source Java library for reading and writing CSV and plain delimited text files. All kinds of CSV files can be handled, text qualified, Excel formatted, etc. -
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x-spreadsheet
A web-based JavaScript (canvas) spreadsheet
This is a lightweight Excel development library built on Web(es6) canvas. These parameters are loaded in the first instantiation, and can also be set later, but it is recommended to modify and load in advance the changes that you need to change. You can adjust the number of columns displayed by default len, AZ, the default width of each column, the default width widthof the left sequence column indexWidth, and the default minimum width of each columnminWidth. You can adjust the style of table rendering. Some of the features include undo and redo, paint format, clear format, format, font, font size, font bold, font italic,, underline, strike, text color, fill color, borders, merge cells, align, text wrapping, freeze cell, functions, resize row-height, col-width, copy, cut, paste, autofill, insert row, column, delete row, column, hide row, column, multiple sheets, print, and data validations. -
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SimpleXlsxWriter
C++ library for creating XLSX files for MS Excel 2007 and above.
This library represents XLSX files writer for Microsoft Excel 2007 and above. The main feature of this library is that it uses C++ standard file streams. On the one hand it results in almost unnoticeable memory and CPU resources consumption while processing (that may be very useful at saving a large data arrays), but on the other hand it makes unfeasible to edit data that were written. Hence, if using this library the structure of the future report should be known enough. The library is written in C++ with using STL functionality and based on the ZIP library (included), which has a free license: http://www.codeproject.com/Articles/7530/Zip-Utils-clean-elegant-simple-C-Win32 This library is distributed under the terms of the zlib license: http://www.zlib.net/zlib_license.html -
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NSE NIFTY Index Option Chain in Excel
NIFTY Index live option chain data in Excel sheet (in simplified view)
Get the Live NIFTY Index Option Chain Data in Excel Sheet for CE & PE. Gives the snapshot of the NIFTY option chain with change in price, OI and volume. NIFTY Trend can analyzed from this Excel based on Change in Open Interest, Price and Volume. Useful for NIFTY option chain traders. Fetch the various data such as Last Traded Price (LTP), Open Interest (OI), Change in Open Interest (%), Change in Price (%), Total Volume Traded, Buy Volume, Sell Volume, Implied Volatility (IV), etc., for both Calls and Puts. A simplified Excel sheet for traders of NIFTY Index, coded in VBA, to fetch the real-time NSE NIFTY option chain price data with different expiry dates and at a few strike prices from the underlying price. Analyze in-depth for the changes in Open Interest (OI), Changes in Price as well as the Buy, Sell Volumes, Total Volumes Traded etc., at different strike prices especially few strike prices with at the money (ATM). -
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Excel - NSE Stock Option Chain
Fetch the live NSE Stock Option Chain data in Excel
Useful Excel sheet for Stock Option Traders. This Excel sheet can fetch the Live NSE Option Chain Data for Stocks. Fetch the live Stock Option Chain data such as Open Interest and Price at differentStrike prices, specifically few Strike Price ranges near to ATM in Excel sheet. It can be used to compare and analyze Open Interest and Price Changes at different Strike Prices. This Excel sheet collects the following data at a given Strike Price, for both Calls (CE) and Puts (PE) and at different Expiry Dates. > Open Interest (OI) > Change in Open Interest (in %), > Last Traded Price for NSE Stock option (in INR) > Change in Last Traded Price (%) It narrows down and fetches few selective Strike Price ranges only at Out of Money (OTM) near to ATM (At the Money) and not fetches from deep far Out of Money Strike Price data. So, it gives a simplified view on OI and Price changes. Homepage : https://www.enote.page/2022/08/stock-option-chain.html -
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csved
CSV Editor with Text-based User Interface (TUI) written in Pure Go
An editor for plaintext tables, consisting of columns separated by arbitrary characters and rows separated by newlines, i.e. tsv, csv and related formats. Licensed under MIT License Copyright (c) 2019 japanoise Source code: https://github.com/japanoise/csved Visit: http://albanese.atwebpages.com -
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MS Project Add-In - Good Plus Fast
Extends Project to export Excel report, audit the schedule and more...
This Microsoft Project add-in includes over 20 features for MS Project 2013 and 2016. You'll be able to see the full chain of predecessor tasks based on the current task, audit your schedule based on industry best practices, see all tasks coming up in the next "x" weeks. This add-in also gives you the power to export a report of your entire project into Microsoft Excel with dates, dates and time, filters, and to see a "Who Does What When" table.
