How do I convert Excel (XLSX) to CSV?

Upload your Excel (XLSX) file using the box above, confirm CSV as the output format, then select Convert. The converted file is ready to download as soon as processing finishes — usually in a few seconds.

Is converting XLSX to CSV free?

Yes, and there is nothing to sign up for. Every conversion is free, there is no paid tier, and the limits are the same for everyone.

Will the quality change when converting to CSV?

Both formats store data losslessly, so the conversion preserves the original quality exactly.

What happens to my file afterwards?

The uploaded file is deleted as soon as the conversion completes, and the converted file is removed automatically once its retention window ends. Download links are signed and expire within minutes.

xlsxcsv

Convert Excel (XLSX) to CSV

Free online converter for Excel (XLSX) files. Delimiter-separated tabular data. Nothing to install, no watermark, and every file is deleted automatically.

Drag and drop your files

Upload a Excel (XLSX) file to convert it to CSV. Up to 200 files at once, 10 GB each.

Free · up to 200 files · 10 GB each · files deleted automatically after 168 hours.

About XLSX and CSV

Excel (XLSX)

Office Open XML workbook.

application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

CSV

Delimiter-separated tabular data.

text/csv

Other Excel (XLSX) conversions

xlsx to json
xlsx to pdf
xlsx to ods

Other ways to get CSV

json to csv
xls to csv
ods to csv