Excel to CSV converter
Save an Excel sheet as plain CSV.
Your files never leave your device.
Quick answer
To convert Excel to CSV, drop your .xlsx or .xls file in and press Convert. Each sheet becomes its own CSV file.
Drop files here
or paste from your clipboard
How to convert Excel to CSV
- Drop your Excel file (.xlsx, .xls or .ods) onto the box.
- Keep the tick if you open the CSV in Excel again, so accents show correctly.
- Press Convert.
- Download the CSV. A workbook with several sheets gives one CSV per sheet.
XLSX is the Excel format. CSV is plain text that every program and database can read, which makes it the usual way to move data around.
Common questions
What happens to formulas?
CSV has no formulas, so you get the values the sheet shows. Dates and numbers are written the way Excel displays them.
What about workbooks with several sheets?
Each sheet becomes its own CSV file, named after the sheet. You can download them together as a ZIP.
Why add the UTF-8 marker?
Excel opens CSV files with a guess at the encoding. A small marker at the start tells it the file is UTF-8, so accents and non-English letters stay correct. Turn it off for databases and scripts that dislike the marker.
Which files work?
XLSX, XLSM, XLS (old Excel) and ODS (LibreOffice). Password-protected files cannot be opened.
Is my spreadsheet uploaded anywhere?
No. The conversion happens inside your browser tab, so your spreadsheet never leaves your device. We cannot see it or keep a copy.
Can I convert many files at once?
Yes. Drop several files in and they are converted one after another. When they finish you can download each one, or all of them together as one ZIP.