Convert XLS to CSV Online
XLS and CSV serve different purposes. Convert XLS to CSV here when you need data export, spreadsheets, databases, analytics.
How to convert XLS to CSV
- Upload your XLS file. Drag it onto the box above or click to browse. Files up to 200 MB are accepted.
- Choose CSV as the output. The target format is pre-selected on this page — just press “Convert now”.
- Download the result. Conversion runs on our own server and the download starts as soon as it is ready. Your files are deleted automatically.
Why convert XLS to CSV?
Converting XLS to CSV is usually about reach: CSV works well for data export, spreadsheets, databases, analytics, while XLS is more at home in legacy spreadsheets.
XLS vs CSV: key differences
| XLS | CSV | |
|---|---|---|
| File type | legacy | tabular |
| Typical use | legacy spreadsheets | data export, spreadsheets, databases, analytics |
| Compatibility | Superseded by XLSX. | Universal, but has no standard for encoding or quoting. |
Tips for a clean XLS to CSV conversion
- Superseded by XLSX.
- Use the highest-quality source XLS you have — converting a compressed file again cannot restore lost detail.
- If you only need a smaller file, try a lower resolution or bitrate instead of a different format.
- Keep the original XLS until you have checked the converted CSV opens the way you expect.
Frequently asked questions
How do I convert XLS to CSV?
Upload your XLS file to the converter on this page, make sure CSV is selected as the output format and click “Convert now”. When the conversion finishes the download starts automatically.
Is this XLS to CSV converter free?
Yes — it is completely free and needs no account. Files up to 200 MB are accepted, and heavy use is rate-limited so the service stays available for everyone.
Will converting XLS to CSV reduce quality?
Because both formats preserve the original data, converting back and forth does not degrade quality.
What is a XLS file?
XLS is the legacy binary Excel spreadsheet format. Its technical name is Microsoft Excel 97-2003 and it is typically used for legacy spreadsheets.
What is a CSV file?
CSV is a plain-text table format that every spreadsheet and database can import. Its technical name is Comma-Separated Values and it is typically used for data export, spreadsheets, databases, analytics.
Can I convert XLS to CSV on my phone?
Yes. The converter runs in the browser on Android, iOS, Windows, macOS and Linux — no app installation is required.
Are my files kept on the server?
No. Uploaded files and converted results are deleted automatically a short time after the conversion finishes.