Convert XLSX to CSV
Turn XLSX files into CSV in seconds — free.
- Works directly in your browser
- Keeps the original formatting and quality
- Download your file in seconds
- No signup, no watermark, no limits
- Supports batches of XLSX files up to 100 MB each
Upload your files
Drop XLSX files here
Files up to 100 MB · deleted automatically after 4 hours
How the conversion works
Three steps between your XLSX file and a finished CSV.
Add your XLSX file
Drag and drop it, or browse your device. Multiple files are fine.
Confirm CSV settings
Choose quality and naming, then start the conversion.
Download
Save the CSV file, or scan the QR code to grab it on your phone.
About converting XLSX to CSV
XLSX and CSV solve different problems, which is why this conversion is so common. Our converter reads the structure of your XLSX file and rebuilds it as a valid CSV file rather than simply renaming it, so the result opens cleanly in the apps you already use.
XLSX is the spreadsheet format used by Microsoft Excel. CSV is plain-text tables with values separated by commas.
The converter sits in our document converters toolkit alongside PDF, DOCX, DOC, XLSX, XLS, PPTX, PPT, TXT, RTF, ODT, ODS, ODP, CSV, HTML and more. Nothing is installed, nothing is stored, and the output carries no watermark.