Excel to CSV Converter
Convert Excel files to CSV. Multi-sheet workbooks let you pick which sheet to export. Preview the data in a table before downloading. Runs in your browser with SheetJS.
Drop an Excel file here or
XLS, XLSX, XLSB, ODS
CSV Output
How It Works
SheetJS reads the Excel file in your browser and converts each sheet to CSV format. For multi-sheet workbooks, use the dropdown to switch between sheets. The table preview shows the first 50 rows and 20 columns.
Dates and numbers are converted using their stored values, not their display formatting. If you need exact formatting, adjust the CSV output after download.
Notes
- Formulas are evaluated and the result values are exported – not the formula text.
- Merged cells may produce empty fields in the CSV for the secondary cells.
- The CSV uses comma delimiters and RFC 4180 quoting rules.
FAQ
Can I export all sheets at once?
Currently you select one sheet at a time. Switch sheets and download each separately.
Does this support .xls (old Excel format)?
Yes. SheetJS reads both the newer .xlsx and older .xls formats, as well as .xlsb and .ods.
What happens to charts and images?
Charts and images are ignored. Only cell data is exported.