can you tell what computer an excel file was created
Instructions. Click on the Windows âStartâ button then on âComputerâ to open Windows Explorer. Browse your computer to find the Excel file. Check the file extension. If it is .xlsx then the file was created with Excel 2007.The extension .xls indicates older program versions. Right-click on the Excel file and choose âPropertiesâ from the pop-up menu. Select the tab âDetailsâ (in Windows Vista or 7) or âSummaryâ then âAdvancedâ (in Windows XP).nstructions. Click on the Windows âStartâ button then on âComputerâ to open Windows Explorer. Browse your computer to find the Excel file. Check the file extension. If it is .xlsx then the file was created with Excel 2007.