XLSX to CSV Online
Free XLSX to CSV converter — no signup, no watermark. Upload your file and download the result in seconds. Files are deleted automatically after conversion.
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Up to 150 MB per file · 1 file at a time · 200+ formats
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Output
From
XLSX
— Microsoft Excel Open XMLXLSX is the modern Microsoft Excel format for spreadsheets, data analysis, and financial models. Compatible with Excel, Google Sheets, and LibreOffice Calc.
All XLSX conversions
To
CSV
— Comma Separated ValuesCSV is a universal plain-text format for tabular data. Supported by every spreadsheet application, database, and data analysis tool.
All CSV conversions