CSV to Excel Converter

Convert CSV to Excel (.xlsx) instantly in your browser. Preview rows, detect delimiters, and download a clean Excel file. Free and private.

How to convert CSV to Excel

  1. Upload your CSV file using drag-and-drop or browse.
  2. Review the preview and confirm header and delimiter options.
  3. Click convert to download your XLSX file.

Best for files up to 10MB and up to 50,000 rows.

For larger files, we'll add a large-file option later.

Drag and drop your CSV file here, or

Privacy: Your file stays on your device. We don't upload or store files.