Free · No signup · Files deleted after 1h

CSV to Excel
Converter

Turn a CSV export into a proper Excel workbook — without the mangled accents and shifted columns Excel's own import loves to produce.

Convert CSV to XLSX free →

No account needed · Up to 25 MB free · Files permanently deleted after 1 hour

No more import wizard
Double-clicking a CSV lets Excel guess the delimiter and encoding — and it guesses wrong constantly. We parse it properly and hand you a clean .xlsx.
Safe by design
Spreadsheet formulas hiding in CSV cells (the classic =cmd injection trick) are neutralised into plain text — the workbook you download can't execute anything.
Private & secure
Uploaded over HTTPS, processed on EU servers, never shared with third parties, and permanently deleted after 1 hour. Never used to train AI.

How it works

1
Upload your CSV
Comma, semicolon, tab or pipe delimited — all detected automatically.
2
XLSX is preselected
Or choose JSON if the data is headed into code, or PDF for a printable table.
3
Download the workbook
Opens directly in Excel, Google Sheets, Numbers or LibreOffice.

Common questions

My CSV uses semicolons — will it work?

Yes. European CSVs (semicolon-delimited, comma decimals) are detected automatically, along with tab- and pipe-delimited files.

Why do my accents break when Excel opens the CSV directly?

Excel assumes a legacy encoding unless the file carries a byte-order mark. We decode UTF-8, Windows-1252 and Latin-1 correctly, so the XLSX shows your text as intended.

Are formulas in the CSV executed?

Deliberately not — any cell starting with =, + or - is stored as literal text in the workbook. That's a security feature: a malicious CSV can otherwise plant live formulas in your Excel.

Is there a file size limit?

Free users can convert files up to 25 MB without an account. Pro raises that to 500 MB per file with 3,000 credits a month; Business goes to 5 GB.

Related converters
Excel → CSV JSON → CSV XLS → XLSX Repair CSV