How to Change the Default to Excel 2003 Instead of Excel 2007

1. Click on the Office button at the upper left-hand corner of the screen. A menu will come up.
2. Click on 'Excel Options' at the bottom of the menu that comes up. A two-pane dialog window appears.
3. Click 'Save' in the left-hand side of the pane. On the right-hand side of the pane, the panel will change to show save options.
4. Select 'Excel 97-2003 Workbook (*.xls)' from the menu on the first option on the panel.
5. Click 'OK' at the bottom of the panel.