Excel to CSV

Chuyển đổi dữ liệu bảng tính Excel sang định dạng CSV với các tùy chọn phân cách và dấu ngoặc kép

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About This Tool

The Excel to CSV Converter converts excel/xlsx spreadsheet data to csv format with configurable delimiters, quote handling, and line endings. All processing happens client-side in your browser, ensuring your data remains private and secure. Perfect for developers who need quick, reliable processing without compromising on privacy or security.

How to Use This Tool

Paste EXCEL Source Data

Enter the EXCEL data you want to convert. The tool automatically validates your EXCEL input and shows any syntax errors before conversion. Ensure your EXCEL is valid for best results.

Configure Conversion Options

Adjust conversion settings like indentation, handling of EXCEL-specific features, and CSV output style. Smart defaults work for most cases, but you can customize how EXCEL structures map to CSV.

Review CSV Output

The converted CSV appears in real-time. Review carefully to ensure data integrity is maintained. Copy to clipboard or download the CSV file. Verify the output with our CSV validator if needed.

Technical Implementation

This tool is built using modern JavaScript and runs entirely in your web browser. All operations complete in milliseconds for typical inputs, with performance optimized for both speed and accuracy. The implementation is client-side only - your data never leaves your device. The tool works offline once loaded, requires no cookies, and includes no tracking. Supported browsers include Chrome 90+, Firefox 88+, Safari 14+, and Edge 90+. The tool is mobile-responsive and works on tablets and smartphones.

Best Practices & Tips

✓Validate input before conversion. Ensure your EXCEL is valid before converting to CSV. Invalid EXCEL often produces unexpected CSV results.
✓Review conversion results. Spot-check the CSV output to ensure data structure and values are preserved correctly. Pay special attention to nested objects and special characters.
✓Handle conversion edge cases. Test with empty values, null fields, special characters, and large datasets. EXCEL-to-CSV conversion can have nuances that require attention.
✓Use related tools in sequence. After conversion, use our CSV formatter and validator to ensure the output is clean and valid. This creates a reliable conversion workflow.

Troubleshooting Common Issues

Problem: Conversion output is missing data or incorrect

Solution: First validate your EXCEL input. Invalid EXCEL often converts to incomplete CSV. Also check if the data structure is compatible - some EXCEL features may not have CSV equivalents.

Example: EXCEL comments or special attributes might not convert to CSV if CSV doesn't support those features.

Problem: Special characters appear corrupted after conversion

Solution: Ensure your EXCEL uses proper character encoding (UTF-8). Special characters, emojis, or international text require consistent encoding throughout the conversion process.

Example: If you see � or garbled text, your source EXCEL might not be UTF-8 encoded.