Convert XLSX to CSV
Upload your Excel spreadsheet (.xlsx, .xls) to convert it to CSV format. Supports multiple sheets — each sheet becomes a separate CSV file.
Drag & drop your XLSX/XLS file here
or click to browse — .xlsx, .xls up to 50 MB
Preview
Converting…
Conversion Complete!
How It Works
Upload XLSX
Drag & drop your Excel spreadsheet or click to browse. Supports .xlsx and .xls files up to 50 MB.
Parse with SheetJS
Your file is parsed entirely in your browser using SheetJS — nothing is uploaded to any server.
Download CSV
Download your CSV file(s) instantly. Multi-sheet workbooks produce one CSV per sheet.
Why Freecvt?
Lightning Fast
Convert in seconds, right in your browser.
100% Private
Your files never leave your device.
Completely Free
No signup, no limits, no watermarks.