Convert XLSX Files Online
Free online XLSX converter - Transform Excel spreadsheets to various formats easily
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Convert your XLSX (Excel Open XML Spreadsheet) files to various formats with our user-friendly online converter. XLSX is Microsoft Excel's modern spreadsheet format that stores data in cells organized by rows and columns, allowing for complex calculations, data analysis, and visualization through charts and graphs.
Our XLSX converter enables you to transform your spreadsheets into multiple formats while preserving formatting, formulas, and data integrity. Whether you need CSV for simpler data interchange, PDF for sharing non-editable reports, or other formats for specific needs, our tool streamlines the entire process without requiring Excel installation.
About XLSX Format
XLSX (Excel Open XML Spreadsheet) is Microsoft's modern spreadsheet file format introduced in Excel 2007. Key features include:
- XML-based format with better compression than older XLS files
- Supports 1,048,576 rows and 16,384 columns per worksheet
- Compatible with formulas, charts, macros, and PivotTables
- Enhanced security features and data recovery options
- Cross-platform compatibility with various spreadsheet applications
How to convert XLSX
Upload your XLSX file using the file selector or drag & drop area
Choose your desired output format (CSV, PDF, XLS, etc.)
Adjust any conversion settings if needed
Click 'Convert' and download your converted file
Benefits of converting XLSX
Free online XLSX converter with high formatting fidelity
Convert to multiple formats including CSV, PDF, XLS, HTML and more
Preserves formulas, charts, and complex spreadsheet elements
No Microsoft Excel required - convert spreadsheets from any device
Secure processing with automatic file deletion after conversion