CSV to XLS Converter

The CSV to XLS Converterconverts Comma Separated Values (CSV) into XLS right in your browser. Nothing is uploaded to a server — the conversion runs entirely on your device.

Why convert CSV to XLS?

The .xls format is the legacy Excel workbook still required by many older systems and integrations. This tool converts your CSV into a real .xls file with auto-sized columns, ready to open in Excel.