Convert Excel to CSV Online — Free XLSX to CSV
Turn one worksheet into a clean UTF-8 CSV file. Preview the visible values, review formula-like text, and export locally 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.
Preserves the table grid
Rows, columns, internal blanks, and hidden data in the selected worksheet are included. CSV cannot keep styles or formulas.
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
Review any formula-text warning, then download a UTF-8 comma-separated CSV.
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.
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