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Microsoft Excel vs Modern CSV: catalog facts
Microsoft Excel	Modern CSV
Freemium Free online version; the desktop app and Copilot features come with paid Microsoft 365…	Freemium Can be downloaded and used for free, with paid features available.
Windows, macOS, Android, iOS, Web	Windows, macOS, Linux
Widely used file format and formula language Free collaborative editing in the browser	Opens large files that are slow in spreadsheet programs Commands operate on many rows, columns or cells at once
Full desktop app needs a Microsoft 365 subscription Copilot features are tied to paid plans	Closed source Focused on delimited text files rather than full spreadsheet work
Downloadable app, Web application	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it 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.