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Excel to CSV
Turn any sheet of an .xlsx/.xls workbook into CSV you can copy or download — processed locally with SheetJS.
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Click or drop an Excel file
Processed locally in your browser — never uploaded.
🔒 This tool runs entirely in your browser. Your data is never uploaded.
Frequently asked questions
Can it handle multi-sheet workbooks?＋
Yes — convert one sheet at a time, choosing which sheet to export to CSV.
Will formatting be preserved?＋
CSV is plain text, so it keeps the values but not colours, formulas or styles.
Is my file private?＋
Yes — it's converted in your browser; nothing is uploaded.