How to use XLSX to CSV
- Choose an .xlsx file.
- The first sheet is converted automatically.
- Copy or download the CSV.
Private spreadsheet conversion
This tool reads your workbook with SheetJS entirely in the browser and converts the first worksheet to CSV. Your spreadsheet is never uploaded.
- Which sheet is converted?
- The first worksheet in the workbook.
- Are my files uploaded?
- No. Everything is processed locally in your browser, so your files never leave your device.