OPENING OF SPREADSHEET MS-EXCEL 2010 needs Window 7 as operating system to run on an IBM PC .However, Excel 2010 can also be run on Windows XP operating system, if service pack 3 is installed on Windows XP. To start Excel 2010 in Window 7, do this : Click the START button on the taskbar, highlight ALL PROGRAMS , click Microsoft Office and then click Microsoft Excel 2010. Starting Excel 2010 in Windows 7 To start Excel 2010 in Window XP, do this : Click the START button on the taskbar, highlight ALL PROGRAMS , click Microsoft Office and then click Microsoft Excel 2010. ...