Convert Excel to CSV without uploading
Every sheet of your Excel (.xlsx or .ods) becomes a CSV ready for another system, in your browser.
- No sign-up
- Free, no watermark
- Nothing leaves your device
Sent to servers: 0 BNothing left your device
About this tool
Payroll, patient lists, receivables: exactly the spreadsheets you shouldn't upload to an online converter. Here every sheet is converted on your computer and downloaded as CSV, or as a Markdown table to paste into an AI.
If the workbook has formulas, we use the last value Excel saved, and we tell you.
How it works
- 01
Drop the .xlsx.
- 02
Check each sheet.
- 03
Download the CSV you need.
Questions
Does it work with protected sheets?
Not if Excel asks for a password to open the file. If it only protects cell editing, yes.
Which delimiter?
Comma.