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Gnumeric vs SmoothCSV: catalog facts
Gnumeric	SmoothCSV
Free Free and open source under the GPL version 2 or version 3.	Free Free to download; the site lists no paid tier.
Linux	Windows, macOS, Linux
Built-in functions with a reputation for accuracy Starts quickly and stays responsive with large spreadsheets	Opens large CSV files quickly Familiar spreadsheet-style grid with multi-cell editing
Spreadsheet only, with no word processor or presentation tools Linux is the main supported platform	Focused on CSV only, not a full spreadsheet with formulas and charts Maintained by one developer in spare time
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0 OR GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.