XLSX to CSV Converter
Convert Excel (XLSX) files to CSV format instantly with our free online converter
Upload File for Conversion
Drag & drop your file or click to select • Supports JSON, CSV, TSV, XLSX files
✓ Smart Format Detection - Automatically detects file format
✓ Instant Conversion - Convert with one click
✓ Multiple Formats - JSON, CSV, TSV, XLSX support
✓ Privacy Protected - All processing happens in your browser
All file processing happens entirely in your browser. We do not upload, store, or access any of your file data.
How It Works
Supported Formats
- • JSON: JavaScript Object Notation
- • CSV: Comma Separated Values
- • TSV: Tab Separated Values
- • XLSX: Excel Spreadsheet
Simple Process
- 1. Upload your file (any supported format)
- 2. We automatically detect the format
- 3. Choose your target format
- 4. File downloads instantly
About XLSX to CSV Conversion
XLSX is Microsoft Excel's file format that supports multiple worksheets, formulas, formatting, and complex data structures. CSV (Comma-Separated Values) is a simple, universal format that can be opened by virtually any spreadsheet application or imported into databases and data analysis tools.
Key Features
- Support for multiple Excel worksheets
- Automatic formula calculation and value extraction
- Preserve data types (numbers, dates, text)
- Handle large Excel files efficiently
- Browser-based processing - no server upload required
- Choose specific sheets to convert
Why Convert XLSX to CSV?
- Universal compatibility across platforms and applications
- Smaller file size for easier sharing and storage
- Import data into databases and data analysis tools
- Use with programming languages and scripts
- Create backups in a simple, readable format