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Excel to CSV Converter

Open a spreadsheet locally, choose a worksheet, preview its rows, and download normalized CSV without uploading the workbook.

—Rows
—Columns
—Input size
ReadyStatus
Local spreadsheet conversionThe selected workbook is read in browser memory. Very large workbooks can exceed browser memory limits.

How to use this Excel to CSV Converter

Convert Excel XLSX/XLS worksheets to CSV in your browser. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.