Free XLSX to XLS Converter | Convert Excel XLSX to XLS Online

About XLSX to XLS Converter

Our free XLSX to XLS converter helps you convert modern Excel XLSX spreadsheets into legacy XLS format quickly and
easily.
Converted XLS files are perfect for compatibility with older Microsoft Excel versions or legacy systems while keeping your
original spreadsheet tables, data and layout intact.

Why Use Our XLSX to XLS Converter?

• 100% free with no hidden charges
• No watermark on output XLS files
• Preserve all tables, data and formatting
• Fast conversion in just a few seconds
• No registration or login required
• Automatic file deletion for privacy
• Works on Windows, Mac, mobile and tablet
• Support for large XLSX files with complex formulas

How to ConvertXLSX to XLS Online

1. Upload your Excel XLSX file from your device
2. Wait for the automatic conversion process
3. Download your ready-to-use XLS spreadsheet