CSV to Excel Converter

Convert your CSV data into professionally formatted Excel spreadsheets with automatic column detection.

100% Browser-Based

Files Never Leave Your Device

No Server Uploads

Zero Data Collection

How It Works

Upload your CSV file using drag & drop or the file picker

The converter automatically detects columns and data types

Click "Convert to Excel" to generate your XLSX file

Download the formatted Excel spreadsheet

Automatic data type detection (numbers, dates, text)

Professional column formatting and header styling

Supports large datasets efficiently

Generates standard XLSX files compatible with all spreadsheet apps

Completely free with no registration required

Will my column headers be preserved?

Yes, the first row of your CSV is automatically detected as headers and formatted as bold column headers in the Excel file.

Can I convert multiple CSV files at once?

Currently the converter handles one file at a time. For batch conversion, upload each file separately.