Excel to CSV Converter — Free
Convert Excel (.xlsx, .xls) files to CSV. All sheets extracted separately. Nothing is uploaded — runs entirely in your browser.
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Drop your Excel file here or click to browse
.xlsx · .xls · .csv
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100% private
Your spreadsheet is processed locally. It never leaves your device.
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Multi-sheet
All sheets extracted separately. Download them all at once.
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xlsx & xls
Supports all modern Excel formats including legacy .xls files.