CSV to Excel

Convert a CSV table to a real Excel .xlsx Instant & Private. Files stay on your device — nothing is uploaded.

Files stay on your device. Nothing is uploaded to our servers.

Comma-separated CSV becomes a real spreadsheet. Other separators are best-effort. Password-protected files are not CSV. Free conversion is limited to about 20 MB, 50,000 rows, and 256 columns. The download is a real Excel .xlsx you can open.