Excel to CSV Converter
Extract worksheets from Excel files (.xlsx, .xls) and convert them to CSV.
Drop your Excel file (.xlsx or .xls)
Select an Excel workbook to extract sheets to CSV
CSV, TSV, XLSX, TXT• Private in-browser processing
Private by Design — Your CSV Stays on Your Device
OnlineCSV processes your files entirely client-side using browser JavaScript. Your CSV contents are never uploaded to any server, database, or remote service.
No account requiredWorks offlineZero data transmission
How to Use Excel to CSV
1
Upload Excel File
Select an .xlsx or .xls file from your computer.
2
Select Sheet
Choose which worksheet tab you want to export to CSV.
3
Download CSV
Download the exported sheet as a standard CSV file.
Frequently Asked Questions
Are multiple sheets supported?
Yes, if your Excel workbook contains multiple sheets, you can select and convert each sheet individually.