Free CSV to Excel Converter
Turn CSV data into a proper .xlsx workbook - paste it in or upload a file, and download the result. Need to go the other way? Try the Excel to CSV Converter.
No file loaded. You can also just paste CSV text below.
How to convert CSV to Excel
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1
Add your CSV
Paste CSV text into the box, or browse for a .csv file to load it in.
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2
Check the options
Confirm the delimiter, header row, and sheet name.
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3
Click "Convert & download .xlsx"
An Excel workbook is built in your browser and downloaded straight away.
Example use cases
Turning a raw export into a shareable workbook
Convert a plain CSV export into a proper .xlsx file before sending it to colleagues.
Getting CSV data into Excel-only workflows
Some tools and processes only accept .xlsx - convert your CSV first.
Preparing data for further spreadsheet work
Convert to Excel to add formulas, formatting, or charts that CSV can't hold.
Frequently asked questions
How are numbers and dates handled?
With "Store numeric-looking cells as numbers" checked, a cell containing only digits (with an optional decimal point or minus sign) is stored as a real Excel number rather than text - useful for sums and formulas in the output file.
Can I rename the sheet?
Yes, set "Sheet name" before converting - it's limited to 31 characters, matching Excel's own sheet-name limit.
Does this produce a real .xlsx file?
Yes, a standard Excel workbook that opens directly in Excel, Google Sheets, or any compatible spreadsheet app.
Is my data uploaded anywhere?
No. Conversion happens entirely in your browser using JavaScript - nothing you paste or upload is sent to a server.