spreadsheet / converter

XLSX to CSV Converter

Convert XLSX files to CSV format using a practical and suitable conversion workflow.

Input: XLSX Output: CSV Local-first processing
Loses formulas, formatting, charts, multiple sheets, comments, and macros.

XLSX to CSV Converter

Convert spreadsheet and data files locally in your browser. Files are not uploaded.

Choose files to begin.

How this page works

Use this page to convert XLSX into CSV. The page describes the accepted input, the expected output, and any quality or compatibility issues that matter for this conversion.

Some conversions are mainly for compatibility, while others may change quality, layout, transparency, timing, metadata, or editability. Loses formulas, formatting, charts, multiple sheets, comments, and macros.