Turn an Excel file (.xlsx, .xls or .ods) into a clean UTF-8 CSV file. Runs in your browser, keeps leading zeros, and checks your data for problems before you download.
Drop a .xlsx, .xls or .ods file. The first sheet is read automatically.
See your columns and first rows, plus a quick data-quality check.
Get a UTF-8 .csv file instantly. Found duplicates or messy data? Clean it with SheetFix first.
Upload your .xlsx file and click Download CSV. Your spreadsheet is saved as a comma-separated CSV file.
Yes. Values are kept as text, so postal codes, IDs and phone numbers with leading zeros stay intact.
The first sheet of the workbook is converted.
Yes, it is free and needs no account.
No. The file is read and converted in your browser.
Turn a CSV into an Excel workbook, leading zeros kept.
Convert CSV or Excel to a JSON array, instant download.
Fix spaces, emails, phone numbers, dates and capitalization.
Diagnose a damaged .xlsx, recover readable data, download a verified file.