How to open .XLSX files on Linux
To open .XLSX files on Linux, open with libreoffice calc or onlyoffice..
Step-by-step instructions
- Open with LibreOffice Calc or OnlyOffice.
- Review locale settings for decimal and date separators.
Recommended software
- Microsoft 365
- LibreOffice
- Google Docs (web)
Alternative methods
- Open .XLSX in a browser-based viewer if desktop apps fail.
- Try opening .XLSX on Linux with a secondary app to rule out app-specific issues.
- Convert .XLSX only with trusted tools when direct opening is not possible.
Common issues
Formulas return errors after import
Locale or compatibility differences can alter formula separators and function names.
- Check locale settings.
- Re-enter formulas in the target app.
- Use a CSV export for plain data transfer.
Security note
Inspect external links and data connections before enabling refresh.