Convert any XLS file to CSV — free, private, entirely in your browser.
Click "Start Converting — Free" to launch the converter in your browser.
Drag and drop your XLS file or click to browse. Choose CSV as the output format.
Conversion runs locally via WebAssembly. Download your CSV file instantly.
Files never leave your device. XLS→CSV conversion is 100% client-side.
No registration, no watermarks, no usage limits — ever.
Uses open-source Pandoc compiled to WebAssembly for native-speed conversion.
Works in Chrome, Firefox, Edge, and Safari on desktop and mobile.
Convert multiple files using the built-in queue without reloading the page.
Yes. AnyConvert uses open-source Pandoc via WebAssembly — no cost, no sign-up, no limits.
No. All conversion happens in your browser using WebAssembly. Your files never leave your device.
There is no server-side limit. The practical limit depends on your device's available memory — most files under 500 MB work fine.
CSV is a universal text format importable by any database, scripting language, or data tool. Excel files require Microsoft Office or compatible software to open.
The first/active sheet is exported as CSV. For multi-sheet workbooks, you may need to convert each sheet separately.
Open AnyConvert in your mobile browser, select your XLS file, choose CSV as output, and download. No app needed.