Convert Excel to CSV Online — Free XLSX to CSV
Turn any Excel workbook into a clean, comma-separated CSV file. Choose the worksheet you need, keep all of your data intact, and export UTF-8 CSV right in your browser.
Auto-detect the format, preview your table, and download the converted file.
A fast, private Excel to CSV converter
Export any spreadsheet to CSV without uploading a single cell.
Keeps all your data
Every row and column is preserved exactly — not just contact fields. It works with any spreadsheet.
Pick any worksheet
Multi-sheet workbook? Choose which worksheet to export before you download.
Client-side & private
Your file is parsed locally in your browser, so your data never leaves your device.
How to convert Excel to CSV
Three steps, fully in your browser.
Upload your Excel
Drag and drop a .xlsx or .xls file, or click to choose one.
Choose a worksheet
Preview the data and select the sheet you want to convert.
Download CSV
Download a UTF-8 CSV file, or copy the text to your clipboard.
Related conversions
Jump to a reverse or related contact file conversion.
Excel to CSV — FAQ
Is this Excel to CSV converter free?
Yes. It is completely free and runs in your browser with no sign-up required.
Can I convert a workbook with multiple sheets?
Yes. When your Excel file has more than one worksheet, you can pick which sheet to export as CSV.
Which delimiter and encoding does the CSV use?
The output is a standard comma-separated CSV saved as UTF-8 with a BOM, so it opens correctly in Excel and other apps — including non-English characters.
Is my data uploaded?
No. The spreadsheet is parsed locally in your browser and never sent to a server.
Convert another spreadsheet
Need CSV back to Excel, or a different format? Explore the full toolset.