CSV ↔ Excel Converter
Drag & drop your file here
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Conversion Complete
Why Choose Our CSV/Excel Converter?
Client-Side Processing
All conversions happen in your browser. Your data never leaves your device, ensuring complete privacy and security.
Format Flexibility
Convert between CSV and Excel formats (XLSX) with ease, perfect for data analysis and reporting needs.
Preserve Data Integrity
Maintain your data structure and formatting during conversion with our reliable processing engine.
How It Works
Upload Your File
Drag and drop your CSV or Excel file or click to browse your computer. We support both formats for conversion.
Select Conversion Type
Choose whether to convert to Excel (modern XLSX format) or CSV (universal text format) based on your needs.
Download Converted File
Get your converted file instantly with one click. Your original file remains unchanged on your device.
Frequently Asked Questions
No, all processing happens directly in your browser. Your files never leave your device, ensuring complete privacy and security.
CSV is a simple text format that stores tabular data with commas as separators. Excel (XLSX) is a binary format that supports multiple sheets, formulas, formatting, and other advanced features.
Use Excel (XLSX) for complex data with multiple sheets or formatting needs. Use CSV for simple data exchange or when working with systems that require plain text formats.
The converter supports files up to 50MB. Very large files may take longer to process depending on your device’s capabilities.
Note: All processing happens in your browser. No data is uploaded to any server.
Maximum file size: 50MB (very large files may take longer to process).