The tool auto-detects common delimiters including commas, semicolons, tabs, and pipes. It analyzes your CSV structure and selects the most appropriate delimiter automatically. You can also manually select a specific delimiter if needed.

Yes! Enter a custom sheet name in the options panel before converting. The default is 'Sheet1' but you can rename it to anything meaningful for your data organization.

When 'Style header row' is enabled, the first row is formatted with bold text and a background color in Excel, making it easy to distinguish column headers from data rows.

No. All CSV processing happens entirely in your browser using SheetJS. Your data never leaves your device, ensuring complete privacy and security.

The tool handles CSV files up to several hundred megabytes depending on your device's memory. Most typical CSV files (under 50 MB) process quickly and smoothly.

Yes. The parser correctly handles quoted fields, escaped quotes, line breaks within fields, and special characters. It follows RFC 4180 CSV standards for maximum compatibility.

No. CSV files contain plain text data only. The conversion creates an Excel file with static values. To use formulas, add them manually in Excel after conversion.

The tool efficiently processes large CSV files with thousands or tens of thousands of rows. For very large datasets (100,000+ rows), the conversion may take a few seconds but works reliably.

Absolutely! You can either upload a CSV file or paste CSV text directly into the input area. Both methods work identically and produce the same Excel output.

Yes. The XLSX format created by this tool is fully compatible with Microsoft Excel, Google Sheets, LibreOffice Calc, and all other modern spreadsheet applications.

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