Convert an Excel file (XLSX) to CSV online
Convert an Excel file (.xlsx, .xls, .ods) to CSV, sheet by sheet, right in your browser.
The file is read locally in your browser; nothing is sent to a server.
🔒 100% client-side — no data sent
Turn an Excel (.xlsx, .xls) or OpenDocument (.ods) workbook into CSV, sheet by sheet, without installing any software. Select the file, choose the sheet, then copy or download the CSV. The conversion happens entirely in your browser.
What is it for?
- ▸ Export an Excel sheet to CSV for import
- ▸ Get tabular data without Excel installed
- ▸ Convert a LibreOffice .ods to CSV
- ▸ Prepare a file for a database or a script
FAQ
Which formats are supported?
Excel .xlsx and .xls workbooks, plus .ods (LibreOffice/OpenOffice), .xlsb and .fods.
Can I choose which sheet to convert?
Yes. If the workbook has several sheets, a menu lets you pick the one to convert.
Are formulas kept?
The CSV contains the cells' computed values, not the formulas themselves, just like a standard CSV export.
Is my file uploaded to a server?
No. The file is read and converted entirely in your browser; no data leaves your machine.