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Upload a CSV to preview
Convert your CSV files to Excel format (.xlsx) instantly with our free online converter. Preview your data before downloading, with automatic encoding detection and column sizing for a perfect Excel file every time.
CSV (Comma-Separated Values) is a universal data format, but Excel provides better formatting, filtering, and analysis capabilities. Our tool bridges the gap, letting you transform raw CSV data into polished Excel spreadsheets without installing any software.
Simply drag your CSV file onto the page or click to browse.
Automatically detects UTF-8, UTF-8 BOM, and ISO-8859-1 encodings.
See your data before converting to ensure it looks correct.
All processing happens in your browser. Your data never leaves your device.
Yes, completely free with no file size limits, no signup required, and unlimited conversions.
Absolutely. All conversion happens directly in your browser using JavaScript. Your CSV data is never uploaded to any server.
Currently the tool parses comma-separated files. For semicolon or tab-delimited files, check back soon as we're adding delimiter options.
Yes! The converter automatically sizes columns based on your data content, so your Excel file is ready to use immediately.