Excel to CSV
Every sheet becomes its own CSV — free, in your browser
Workbooks with multiple sheets are converted one CSV per sheet, bundled into a ZIP.
100% private — Files are converted right in your browser and never uploaded to any server.
How it works
- 1
Drop in your Excel file (.xlsx or .xls).
- 2
Choose a delimiter — comma, semicolon or tab.
- 3
Click Convert and download — a single CSV, or a ZIP if there are multiple sheets.
Why people choose us
Private by design
Your input is processed securely and never sold. Client-side tools never leave your browser at all.
Instant & free
No installs, no waiting. Results in seconds, right in your browser, on any device.
Free forever
No sign-up, no watermarks, no limits. All client-side tools are free to use as much as you like.
Frequently asked questions
What happens to multiple sheets?⌄
Each sheet becomes its own CSV file, named after the sheet, bundled into a single ZIP download.
Does it support the old .xls format?⌄
Yes — both the modern .xlsx and the legacy binary .xls format are supported.
Is my file uploaded?⌄
No — the conversion runs entirely in your browser using an on-page engine. Your spreadsheet never leaves your device.
Why choose semicolon or tab instead of comma?⌄
Some locales and tools (e.g. Excel configured for certain European regions) expect semicolon-separated values; tab-separated is handy for pasting into other apps.