Excel to JSON and CSV Converter Tool
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Lightning Fast Processing
Convert your Excel files to JSON or CSV format instantly with our optimized processing engine. No waiting time, just results.
100% Secure & Private
All file processing happens locally in your browser. Your data never leaves your device, ensuring complete privacy and security.
Mobile Responsive Design
Works perfectly on all devices – desktop, tablet, and mobile. Convert files anywhere, anytime with our responsive interface.
Preserves Data Integrity
Maintains original formatting, data types, and structure during conversion. No data loss or corruption guaranteed.
No File Size Limits
Handle large Excel files without restrictions. Our tool efficiently processes files of any size with consistent performance.
Multiple Sheet Support
Automatically detects and converts multiple worksheets. Each sheet becomes a separate JSON object or CSV section.
Frequently Asked Questions
What Excel file formats are supported?
Our tool supports both .xlsx and .xls file formats. Modern Excel files (.xlsx) and legacy Excel files (.xls) are both fully compatible with our converter.
Can I convert multiple sheets from one Excel file?
Yes! The tool automatically detects all worksheets in your Excel file. When converting to JSON, each sheet becomes a separate object. For CSV, you’ll get clearly labeled sections for each worksheet.
Is my data safe when using this converter?
Absolutely. All file processing happens entirely in your browser using client-side JavaScript. Your files are never uploaded to any server, ensuring complete privacy and data security.
What’s the difference between JSON and CSV output?
JSON format preserves the hierarchical structure and data types, making it ideal for web applications and APIs. CSV format creates a flat, comma-separated structure perfect for database imports and spreadsheet applications.
Can I handle large Excel files?
Yes, there are no artificial file size limits. However, very large files may take longer to process and might use more browser memory. For optimal performance, we recommend files under 50MB.
Will empty cells and formulas be handled correctly?
Empty cells are preserved as null values in JSON or empty strings in CSV. Excel formulas are converted to their calculated values, not the formula itself, ensuring data accuracy in the output.