Convert your data files between different formats instantly with our secure, browser-based converter.
Support for Excel, CSV, JSON, XML, and more with 100% privacy - no uploads required.
Professional-grade data conversion for developers, analysts, and business users.
Upload your data file (Excel, CSV, JSON, XML, etc.) by dragging and dropping or clicking the upload area.
Select your desired output format from the available data format options (CSV, JSON, Excel, XML).
Configure conversion settings if needed (delimiter for CSV, sheet name for Excel, etc.).
Click convert and download your processed data file instantly - no server uploads required.
Click to upload or drag and drop
Excel, CSV, JSON, XML up to 10MB
Convert Excel sales reports to CSV for data analysis in Python or R
Convert JSON API responses to CSV for spreadsheet analysis and reporting
Convert XML configuration files to JSON for modern application integration
Convert database exports from various formats to Excel for business reporting
Convert Excel reports to CSV for use in data analysis tools like Python, R, or business intelligence platforms
Convert server data to JSON format for frontend applications, or transform API responses to other formats
Bridge compatibility gaps between different systems by converting data formats during data transfers
Convert various data formats to Excel for business users who prefer spreadsheet-based analysis
Migrate data between legacy systems and modern applications by converting between XML, JSON, and CSV formats
Data file conversion is the process of transforming data from one format to another while preserving the underlying information and structure. Each data format has its own advantages: Excel spreadsheets offer rich formatting and calculations, CSV provides universal compatibility, JSON enables web integration, and XML ensures structured data exchange.
Our converter uses advanced parsing algorithms to understand the structure of your input data and intelligently map it to the target format. For example, when converting Excel to CSV, we maintain column headers and data types while handling complex features like merged cells and multiple sheets.
The entire conversion process happens directly in your browser using JavaScript, ensuring your data never leaves your device. This approach provides maximum security and privacy while delivering professional-grade conversion quality comparable to desktop software.
Not checking data structure after conversion
Always verify that your converted data maintains the correct structure and formatting, especially for complex nested data in JSON/XML conversions
Wrong delimiter selection for CSV files
Choose the right delimiter based on your target system (comma for US/UK, semicolon for European systems, tab for database imports)
Ignoring data type formatting
Ensure dates, numbers, and special characters are properly formatted for your target application to avoid import errors
Converting very large files all at once
For files over 50MB, consider splitting them into smaller chunks for more reliable conversion and faster processing
Not backing up original data
Always keep a copy of your original file before conversion, especially for critical business data
Upload your Excel file (.xlsx or .xls), select CSV as the output format, choose your preferred delimiter, and click convert. Your Excel file will be converted to CSV format instantly in your browser.
Yes, you can upload multiple files of the same type and convert them all to your desired format. The converter will process each file individually and provide download links for all converted files.
Absolutely! All conversion happens directly in your browser using JavaScript. Your files never leave your device, are never uploaded to servers, and are automatically deleted after conversion.
The converter handles files up to 100MB, depending on your browser's memory limits. For optimal performance, we recommend files under 50MB.
The converter automatically detects most common date formats. For specific date formats, you may need to format them consistently in your source file before conversion.
Yes, the converter supports comma, semicolon, tab, and pipe delimiters. You can also specify custom delimiters for non-standard CSV files.
Nested JSON structures are flattened, with nested fields converted to column names using dot notation (e.g., 'address.city' becomes a column header).
Excel formulas are converted to their calculated values in CSV and JSON formats, as these target formats don't support Excel formulas.