Step 1th : Open the Excel2007 software by finding Microsoft Office in the Start menu and opening Microsoft Office Excel 2007 under the column.
Tip: The desktop may also have the program's shortcut launch menu, double-click on the desktop can also open.
2nd step : After opening the Excel2007, click the Office button in the upper-left corner and locate and click the Excel option in the pop-up Office menu.
3rd Step : In the Open Excel Options window, click Save on the left, and then click the Drop-down menu on the right "save file as this format", select Excel 97-2003 Workbook (*.xls) in the Drop-down menu, and click Save button.
The 4th step : After saving, can already be effective, later whether save or save as, the default is to save the Excel2007 version as a lower version of the Excel2003 version.
5th Step : At this point we can try, click left last Office Button again, click Save in the pop-up Office menu.
Tip: Save the shortcut combination hotkey is ctrl+s. This combination hotkey can be used almost universally for any software on a Windows system.
6th Step : This will pop up a "Save as" window, in this window, the default save type is set in the third step of the "excel97-2003 Workbook (*.xls)", the file name extension is. xls.