Convert Excel (.xlsx) to CSV
Need plain CSV for an import, a script or a database? Convert .xlsx or .xls to CSV in your browser — multi-sheet workbooks produce one CSV per sheet, and output is UTF-8 with BOM so accented characters display correctly when reopened in Excel. Nothing is uploaded.
▶ Open the tool✓ Processed on your device✓ No sign-up to start✓ Free & unlimited on the web
How it works
- Open Excel to CSV and select your .xlsx or .xls file.
- Convert — each sheet is exported as its own CSV.
- Download the CSV file(s), ready for imports and scripts.
Frequently asked questions
- What if my workbook has several sheets?
- You get one CSV file per sheet, so no data from other tabs is lost.
- Why UTF-8 with BOM?
- The BOM makes Excel detect the encoding correctly, so accents and special characters (é, ü, ş, ö) display properly instead of as garbage.
- Does my spreadsheet leave my device?
- No. Conversion runs entirely in your browser — it's free with no limits, and your data is never uploaded.