Excel to CSV Converter
Drop a file here or choose one
Supports files up to 50 MiB each.
Drop in a file, click convert, and you're done. Everything runs directly in your browser with no upload to wait for, and the result is ready to download right away.
Things to know
- With multiple sheets, the per-sheet CSV files are bundled into a ZIP for download.
- Formulas are converted to their saved calculated values — the formulas themselves are not preserved.
- Cell colors, fonts, merges, and other formatting are not preserved because CSV doesn't support them.
How to use
Select an Excel file
Choose an XLSX file up to 50 MiB.
Start converting
Once the file check is done, the CSV conversion starts.
Save the CSV
Download the CSV, or a ZIP with one CSV per sheet.
Frequently asked questions
What do I get if the workbook has multiple sheets?
With a single sheet you download one CSV file directly. With multiple sheets, CSV files named after each sheet are bundled into one ZIP for download.
How are formulas handled?
The calculated result values that Excel saved in the file are used. The formulas themselves do not appear in the CSV.
Are cell formatting and merges preserved?
No. CSV only holds values, so colors, fonts, borders, and merged cells are not preserved. A merged cell keeps its value only in the first cell.
Can I convert older XLS files?
No. Only the XLSX format is supported. Re-save XLS files as XLSX in Excel and try again.
Is my Excel file sent anywhere?
No. Your files never leave your device. Conversion runs inside your browser and nothing is uploaded.