Document & File Converters
Convert CSV to Excel
Convert CSV to XLSX online with SheetJS. Open comma-separated data in Excel.
- Private when possible
- No account required
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About this tool
CSV to Excel upgrades plain CSV into a real workbook for sorting, filtering and charts.
How to use
- Upload CSV.
- Convert.
- Download XLSX.
Features
- xlsx write
- Client-side
- Fast one-step
Common use cases
- Import CSV into Excel
- Clean data workflows
Supported formats
CSV → XLSX
Privacy
This tool processes data in your browser. Content is not uploaded to our servers unless a feature explicitly requires a network request.
Frequently asked questions
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