CSV to Excel Converter
Convert CSV files to Excel (.xlsx) online for free. Parses quoted fields, commas, and Unicode text correctly, directly in your browser.
Drop your file here
or choose a file
Supports CSV
Your files are processed locally in your browser and are not uploaded to our servers.
How to use the CSV to Excel converter
- 1
Drop a .csv file onto the upload area, or click it to choose one.
- 2
Check the preview of the parsed rows and columns.
- 3
Click "Convert to Excel."
- 4
Download the resulting .xlsx file.
Common uses
- Turning a CSV export from another system into a workbook you can filter, sort, or add formulas to
- Converting a CSV report into a format easier to share with people who expect Excel
- Getting quoted, comma-containing data into spreadsheet cells correctly without manual cleanup
Supported formats and limitations
Accepts CSV, up to one file at a time.
- The first non-empty row is treated as the header row and bolded; there's no per-column type detection (numbers/dates are written as their original text unless you convert cells in Excel afterward).
- No formulas, cell styles, or multiple sheets are created — one plain data sheet, matching the source CSV.
- 10 MB file size limit.
Frequently asked questions
No. Parsing and the .xlsx file are both generated entirely in your browser — nothing is sent to a server.
Yes — quoted fields, embedded commas and line breaks, escaped quotes, and empty cells are all parsed correctly and land in the right cells.
Yes — UTF-8 encoded CSV files, including Vietnamese and other Unicode text, are read and written correctly.
Yes — the first non-empty row becomes the header row and is bolded in the output; every row after that becomes data.
Yes, 10 MB.