GridCraft is a free, open-source spreadsheet application created by ArtCraft for practical data work. It combines an Excel-style ribbon, worksheet tabs, a formula bar, formatting tools, charts, and PivotTables in one workspace.
With GridCraft, users can open, inspect, edit, and save XLSX files while keeping an original copy for safety. The application supports more than 500 worksheet functions, including SUM, IF, dynamic arrays, LET, and LAMBDA. Its calculation engine is written in Rust and runs locally through WebAssembly in the web version.
GridCraft works in browsers and as a desktop application for Windows, macOS, and Linux. It is distributed at no cost under the MIT and Apache 2.0 licenses. As alpha software, it has compatibility limitations with complex workbooks, specialist Excel functions, external data, and VBA macros, so important files should be backed up and checked after import or export.
Learn more at GridCraft or explore the source code on GitHub.
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