XLSX to CSV
Flatten an Excel worksheet into a CSV you can use anywhere — all on your device.
XLSX to CSV
Export the first (or selected) sheet of an Excel .xlsx to a flat CSV file.
📑
Click or drop a .xlsx file
Excel workbook
Result
Your CSV will appear here.
What about multiple sheets or formulas?
CSV is a single, flat table, so only the sheet you pick is exported. Formulas are written out as their calculated values, and number formatting becomes plain text. Multi-sheet workbooks are exported one sheet at a time.
What happens to multiple sheets when I export to CSV?
CSV is single-sheet, so only the active sheet is exported. If your workbook has several tabs, export each one separately to preserve all data.
Will number formatting survive the export?
Values do; display formatting (currency symbols, colors) does not, because CSV is plain text. The underlying number is preserved for reuse in any tool.