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RequirementsResult available for freeNo account neededNo watermarkWorks offlineBatch processing

Tools marked “Free option”: sources show you can get the result without paying, possibly with limits. A free download or trial alone doesn’t count.

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1 app

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GridCraft

Desktop·Documents

Free option

GridCraft is a desktop spreadsheet app with ribbon tabs, a formula bar, more than 500 calculation functions, dynamic arrays, seventeen chart types and PivotTables. It reads and writes spreadsheet files (.xlsx) and also works with CSV and TSV files. It is free and open source under MIT or Apache-2.0 with no subscription, but its README calls it alpha and says depth, fidelity and file compatibility are still rough. The official getartcraft.com page lists GridCraft as “In development” (checked 13 October 2026).

Why it fits

Spreadsheets

Good to know: Requires desktop installation.

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