CSV β Excel Converter
Convert between CSV and Excel (.xlsx) formats instantly in your browser.
π
Upload CSV File
Select a CSV file to convert to Excel
Max file size: 50MB
How to Use
- Choose conversion direction: CSV β Excel or Excel β CSV
- Upload your file by clicking or dragging
- Preview the converted data
- Download the converted file
All processing is done in your browser, and files are never sent to a server.
Frequently Asked Questions
Are my files uploaded to a server?
No, all conversion happens in your browser. Files never leave your device.
What Excel formats are supported?
Both .xlsx and .xls formats are supported for input. Output is always .xlsx.
Is there a file size limit?
Files up to 50MB are supported. Larger files may take longer to process.
Will formatting be preserved?
Basic data and structure are preserved. Complex Excel formatting (colors, formulas) may not be retained.
Can I convert multiple sheets?
When converting Excel to CSV, only the first sheet is converted. For multi-sheet files, use the Excel Viewer tool.
Does it work on mobile?
Yes, the converter works on all modern browsers including mobile devices.