Convert XLSX to CSV Online
Need CSV instead of XLSX? This free converter changes XLSX files into CSV in seconds, right in your browser.
How to convert XLSX to CSV
- Upload your XLSX 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 XLSX to CSV?
Converting XLSX to CSV is usually about reach: CSV works well for data export, spreadsheets, databases, analytics, while XLSX is more at home in data analysis, budgets, reporting.
XLSX vs CSV: key differences
| XLSX | CSV | |
|---|---|---|
| File type | editable | tabular |
| Typical use | data analysis, budgets, reporting | data export, spreadsheets, databases, analytics |
| Compatibility | Supported by Excel, Google Sheets and LibreOffice. | Universal, but has no standard for encoding or quoting. |
Tips for a clean XLSX to CSV conversion
- Supported by Excel, Google Sheets and LibreOffice.
- Use the highest-quality source XLSX 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 XLSX until you have checked the converted CSV opens the way you expect.
Frequently asked questions
How do I convert XLSX to CSV?
Upload your XLSX 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 XLSX 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 XLSX to CSV reduce quality?
Because both formats preserve the original data, converting back and forth does not degrade quality.
What is a XLSX file?
XLSX is the modern Excel workbook format. Its technical name is Office Open XML Spreadsheet and it is typically used for data analysis, budgets, reporting.
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 XLSX 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.