CSV ↔ Excel Converter
Convert between CSV and Excel (XLSX) formats — files never leave your browser
Click or drag file here
Accepts .csv files
CSV and Excel Conversion
Upload a CSV file to convert it to Excel format, or upload an Excel (.xlsx) file to extract it as CSV. You can also paste CSV text directly. All processing is done locally in your browser.
Supported formats
- CSV → XLSX: Comma, semicolon, tab, or pipe delimited
- XLSX → CSV: First sheet extracted as CSV
- Paste CSV text and download as XLSX
- Preview data before converting