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XLS to CSV Converter

Convert XLS files to CSV in seconds, free and unlimited.

🔒 Files are processed on your device. Nothing is uploaded.

How to convert XLS to CSV

  1. Click Choose files or drop your XLS files into the box. You can add several at once.
  2. Make sure CSV is selected as the output format.
  3. Press Convert, then download your CSV files.

XLS

Legacy Excel 97–2003 workbook.

CSV

Comma-separated values: plain-text tables accepted by every spreadsheet and database.

Spreadsheets are converted with SheetJS. Formulas are kept as their calculated values; formats with a single table (CSV, HTML) export the first sheet.

Other XLS conversions

Convert other files to CSV

FAQ

Is converting XLS to CSV free?

Yes. Unlimited conversions, no sign-up, no watermark.

Are my files uploaded to a server?

No. FieldConvert processes files inside your browser, so your XLS files never leave your device. That makes it private and fast, because there is no upload or download wait.

Is there a file size limit?

Only your device's memory. Files up to about 2 GB work in most desktop browsers.