How to Save on 2007 Excel for 2003 Without Macros

Save a Single File in Compatibility Mode
1. Launch Excel 2007 and open the document you want to save for Excel 2003 accessibility.
2. Click the 'Office' button, in the upper-left corner of the screen. This is the round button with the Microsoft Office logo on it, which turns gold when you hover over it with your mouse pointer.
3. Click 'Save As' and select a location to save your document on your computer.
4. Enter a file name in the 'File name' field.
5. Select 'Excel 97-2003 Workbook (*.xls)' from the drop-down menu in the 'Save as type' field.
6. Click 'Save.'
Set Compatibility Mode as Default
7. Launch Excel and click the 'Office button' in the upper left corner.
8. Select 'Excel Options' from the bottom of the menu window.
9. Select 'Save' from the left menu bar.
10. Choose 'Excel 97-2003 Workbook (*.xls)' from the drop-down menu in the 'Save files in this format' field.
11. Click 'OK.'