With the release of Microsoft’s Office 2007 Suite, the spreadsheet application Excel began using a new file format with the .xlxs extension. This has presented some confusion and compatibility issues for users of older versions of Excel. While Excel 2007 can open, edit and save files in either the old .xls or the new .xlxs format, older versions cannot open the new files. Follow these steps in order to open these new .xlxs files. Tips Writer Bio
