Excel to CSV Converter

Convert your Excel spreadsheets to universal CSV format — compatible with any application.

100% Browser-Based

Files Never Leave Your Device

No Server Uploads

Zero Data Collection

How It Works

Upload your Excel file (XLSX or XLS)

The converter reads the spreadsheet data and structure

Click "Convert to CSV" to extract the data

Download the CSV file

Supports both XLSX and XLS formats

Preserves all cell data and formatting

Handles multiple sheets (first sheet by default)

Proper CSV escaping for special characters

Fast, browser-based processing

Which sheet is converted?

By default, the first sheet in the workbook is converted. Multi-sheet support is planned for a future update.

Are formulas preserved?

Formula results (computed values) are preserved in the CSV output. The formulas themselves are not included since CSV is a plain data format.