CSV ↔ Excel Converter
Convert CSV to Excel or Excel to CSV with automatic direction detection and batch processing. All operations happen locally in your browser; the tool is completely free.
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Click to select, or drag CSV / Excel files here (multiple allowed)
CSV to Excel and Excel to CSV, direction auto-detected · Processed entirely on your device,
FAQ
How do I choose the conversion direction?
No need to choose—it’s automatically detected: uploading a .csv file converts it to .xlsx, while uploading .xlsx or .xls files converts them to .csv. Multiple files can be processed together, mixed formats supported.
Will Chinese characters be garbled in the exported CSV?
No. The exported CSV includes UTF-8 BOM, so Chinese text opens correctly in Excel without garbling.
What if my Excel file has multiple sheets?
When converting to CSV, each sheet is exported as a separate csv file and bundled into a single zip archive.
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