Processed in your browser
The selected file is read and the result is made in the current browser.
EXCEL TOOLS
CSV ↔ Excel Converter
Turn CSV into XLSX, or export an Excel sheet as UTF-8 CSV ready to download.
Unlimited freeNo sign-upProcessed in browser
Conversion result
How to convert between CSV and Excel
Use it to work on downloaded CSV data in Excel or send spreadsheet data as a compatible UTF-8 CSV.
Source stays unchanged
Only a new result file is created; the source stays unchanged.
Check the result
Open the downloaded file and check its headers and row count.
PRACTICAL GUIDE
How to use it
- Choose a CSV or spreadsheet file.
- Choose a sheet when the workbook has more than one.
- Select the output format and download the file.
Frequently asked questions
Will Korean characters display correctly?
CSV results include a UTF-8 BOM to improve opening in spreadsheet apps that expect it.
Does it export every Excel sheet to CSV?
CSV can hold one sheet, so only the selected sheet is exported.
Is my source file uploaded?
No. The file is read and the result is created in the current browser.