CSV to Excel
Convert CSV to an Excel .xlsx spreadsheet.
Click to upload or drag & drop
Select a CSV file
How to use the CSV to Excel
- 1Upload your CSV file
Drag and drop or click to select the CSV file.
- 2Convert to Excel
Click Convert to Excel and we process it on our secure server.
- 3Download
Your Excel .xlsx file downloads automatically.
Convert CSV to Excel
This tool converts a CSV (or TSV) file into a proper Excel (.xlsx) workbook with LibreOffice, so your data opens cleanly in Excel with real columns instead of raw text.
When to use it
- Open messy CSV data neatly in Excel.
- Turn an export into a shareable workbook.
- Prepare CSV data for formatting and formulas.
Private & secure
Your CSV is parsed and rebuilt as a real Excel workbook with LibreOffice on our server. It is uploaded encrypted, processed in a disposable workspace, and both the CSV and the XLSX are wiped the moment the download begins.
Frequently Asked Questions
Will my columns split correctly?
Yes — comma and tab separated values are parsed into real spreadsheet columns in the resulting .xlsx.
Are my files uploaded to a server?
Yes. Producing a genuine .xlsx with typed cells uses LibreOffice on the server, so the CSV is uploaded for the conversion. It is isolated for that one request and removed once the workbook is returned.
Is it free? Is there a watermark or size limit?
Completely free, no sign-up, and no watermark. CSV files up to 100 MB each are accepted.