Excel to CSV
Convert Excel .xlsx / .xls spreadsheets into CSV, right in your browser. Free, private, nothing uploaded.
Drop files here or click to browse
Converted on your device. Nothing is uploaded — no size limit.
Frequently asked questions
Are my files uploaded to a server?
No. Everything is processed entirely inside your browser. Your files never leave your device or get sent anywhere.
Which sheet is exported?
The first sheet of the workbook is exported to CSV. Split multi-sheet files into separate CSVs by saving each sheet separately.
Does it support .xls as well as .xlsx?
Yes — both the modern .xlsx and older .xls formats are read directly in your browser.