Online Excel to CSV Converter
Convert your Excel spreadsheets (.xlsx, .xls, .xlsm, .ods) to clean CSV files instantly. Everything is processed locally in your browser for maximum privacy.
Upload Excel File
Worksheet Options
CSV Output
Data Processing
Converted CSV
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100% Private
Your files never leave your computer. All processing happens in your browser.
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Lightning Fast
Handle large Excel files with thousands of rows in seconds using our optimized engine.
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Full Control
Customize separators, quote characters, and handle multiple worksheets with ease.