Convert XLSX to CSV
Excel spreadsheet (XLSX) → CSV table: convert online for free. XLSX to CSV conversion runs right in your browser — your files never leave your device.
Drop files here or choose them
You can also paste files with Ctrl+V
Files never leave your device
About the formats
- Excel spreadsheet (XLSX)
- Microsoft Excel workbook format with sheets, formulas and formatting. Also opens in Google Sheets, Numbers and LibreOffice.
- CSV table
- Plain-text table with comma- or semicolon-separated values. Opens in Excel, Google Sheets and any text editor.
How to convert XLSX to CSV
- Choose a Excel spreadsheet (XLSX) file or drag it onto the page.
- Check the settings and click Convert.
- Download the CSV table file when it is ready.
Frequently asked questions
Why does Excel show garbled characters in a CSV?
Excel reads UTF-8 without a byte order mark as a legacy encoding. That is why CSV from XLSX is saved as UTF-8 with BOM by default. You can also pick the delimiter: Excel in many European locales expects a semicolon.
Is converting XLSX to CSV free?
Yes. Conversion is free, with no sign-up and no watermarks.
Are my XLSX files uploaded anywhere?
No. The conversion runs in your browser, so your files never leave your device.
What data is kept when converting XLSX to CSV?
All cell values and column headers. Formulas are saved as their calculated results; formatting, charts and images are not carried over, since CSV and JSON store data only.