ConvertWhat happens when you convert XLS to CSV
- A workbook with several sheets gives one CSV file per sheet, downloadable together as a ZIP.
- Formulas are saved as their last calculated values; formatting, charts and merged cells aren't carried over.
- "Excel-friendly UTF-8" makes Excel show accents and symbols correctly. Pick semicolons for European versions of Excel.
XLS vs CSV
| Feature | XLS | CSV |
|---|---|---|
| Multiple sheets | Yes | No |
| Formulas | Yes | No |
| Numbers & dates | Yes | No |
| Nested data | No | No |
| Best for | Old Excel versions | Imports, exports, databases |
How to convert XLS to CSV
- Drop your XLS files on the box above, or click it to choose files. You can add many at once.
- Adjust the options if you want. The defaults work well for most files.
- Click Download for each CSV file, or "Download all" to get a ZIP.
Frequently asked questions
Is it safe to convert my files here?
Yes. Conversion happens entirely in your browser. Your files are never uploaded to a server, so nobody else can see them.
Is it free? Are there limits?
It's completely free, with no sign-up, watermarks or daily limits. The only limit is your device's memory for very large files.
Can I convert many XLS files at once?
Yes. Drop as many files as you like; they're converted one after another and you can download them all as a ZIP.
What happens to formulas and formatting?
Each formula is saved as its last calculated value. Cell values, numbers, dates and text are kept; formatting, charts and merged cells aren't.
What about workbooks with several sheets?
Every sheet is converted. CSV has no sheets, so you get one CSV file per sheet.