📈
CSV to Excel
Paste CSV and generate a real .xlsx Excel file in your browser with SheetJS — pick the delimiter and download.
Generates a real .xlsx workbook in your browser with SheetJS.
🔒 This tool runs entirely in your browser. Your data is never uploaded.
Frequently asked questions
What does it produce?＋
A downloadable .xlsx Excel workbook built from your CSV data.
Does it detect columns automatically?＋
Yes — comma-separated fields become spreadsheet columns, with the first row as headers.
Is my data uploaded?＋
No — the workbook is generated in your browser.