Convert CSV to Excel
Turn a CSV file into a proper Excel workbook, with every column in its own cell.
How it works
- Drag and drop your CSV (.csv) file below.
- Choose the output workbook format.
- Click Convert to download the spreadsheet.
What this tool does to your file
The CSV is parsed into a real workbook with every value in its own cell. The delimiter is sniffed rather than assumed: comma wins ties, but semicolon is accepted too, because Excel writes and expects semicolon-delimited CSV in every locale whose decimal separator is a comma — Hungarian among them — and a comma-only parser would turn such a file into a single column holding each entire row as text. Numeric coercion is deliberately narrow: only a plain, optionally negative decimal becomes a number, so leading-zero product codes, phone numbers and long identifiers stay text instead of being silently mangled. A generated workbook may hold up to one million non-empty cells, which is just under the .xlsx row ceiling. CSV uploads are capped at 10 MB whatever your tier, because a dense CSV expands enormously once it becomes cells. Output can be .xlsx or legacy .xls.
What happens to your files
- No account needed — Every tool works as a guest. Signing in raises the limits and keeps your files together, but nothing asks you to register before you get a result.
- It runs in your browser — There is nothing to install and nothing to keep up to date. Files travel to our servers over an encrypted connection, and come back the same way.
- Your files stay yours — Files and results stay in your account until you delete them. Files from a guest session that is never linked to an account are removed automatically after a period of inactivity.
- Size limits, stated up front — Up to 10 MB per file as a guest, and up to 25 MB signed in. You see the limit before you upload, not after.