ReoGrid
ReoGrid is a free, open-source office app for Windows. Fast and powerful.NET spreadsheet component, support data format, freeze, outline, formula calculation, chart, script execution and etc. It has 1,607 GitHub stars and is released under the MIT license. Its source code is on GitHub at unvell/ReoGrid.
github.com/unvell/ReoGrid (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
About ReoGrid
Fast and powerful open-source.NET spreadsheet component for building Excel-like experiences in WinForms and WPF applications.
Similar apps
More open-source office suites
Moneymanagerex
moneymanagerex/moneymanagerex
Money Manager Ex is an easy to use, money management application built with wxWidgets.
Active · last commit Oct 26, 2026
Office & spreadsheetsWindowsmacOSLinuxShardBrowser
ProxyShard/ShardBrowser
Free, open-source anti-detect browser launcher for web scraping and multi-accounting.
Active · last commit Oct 25, 2026
Office & spreadsheetsWindowsmacOSLinuxTreesheets
aardappel/treesheets
Hierarchical spreadsheet: a free-form data organizer that replaces outliners, mind maps and spreadsheets.
Active · last commit Oct 26, 2026
Office & spreadsheetsWindowsmacOSLinuxGanttproject
bardsoftware/ganttproject
Official GanttProject repository.
Maintained · last commit Oct 27, 2026
Office & spreadsheetsWindowsmacOSLinuxTexstudio
texstudio-org/texstudio
TeXstudio is a fully featured LaTeX editor.
Active · last commit Oct 26, 2026
Office & spreadsheetsWindowsmacOSLinuxOfficedex
officecli/officedex
OfficeDex is the first Al-Native VibeOfficing platform for documents, slides, and spreadsheets.
Active · last commit Oct 14, 2026
Office & spreadsheetsWindowsmacOSLinux
Is ReoGrid free and open source?
Yes. ReoGrid's source code is public on GitHub under the MIT license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install ReoGrid?
Download the installer for Windows from its GitHub Releases page (latest: v3.3.0) or the project website.
Is ReoGrid still maintained?
The repository's most recent commit was on Sep 3, 2026. appsgit only lists apps whose repository had a commit in the last six months.