How to Convert XLXS to XLS in Microsoft

Convert With Excel
1. Launch Microsoft Excel 2007 or Excel 2010. Open the '.xlxs' file that you want to convert to '.xls'.
2. Click 'File' from the main program menu. Select 'Save As' from the drop-down menu.
3. Select 'Excel 97-2003 Workbook' from the 'Save As' context menu. This converts and saves the '.xlxs' file to an '.xls' file.
Convert With Office Compatibility Pack
4. Launch your Web browser. Navigate to the Microsoft Office Compatibility Pack download page.
5. Click the 'Download' link toward the top of the page. Select 'Save' from the on-screen download prompt to save the 'FileFormatConverters' installation file to your computer's hard drive. Wait for the download to finish.
6. Locate the file in your computer's 'Downloads' or 'My Downloads' folder. Double-click the file to install the Microsoft Office Compatibility Pack. If prompted, restart your computer during the installation process.
7. Open Microsoft Excel. Click 'File' followed by 'Open' to open the '.xlxs' Excel file that you want to edit or view. Excel now converts the workbook document into a format that is compatible with the older version of Excel.