How to Set the Word 2007 Default to Save in Word 2003 Format
Although it seems that most users in my work environment have made the switch over to Microsoft Office 2007, there are still a few clinging to what they know. I also have the issue of having Office 2007 at work and Office 2003 at home. So, the easiest thing I have found to avoid compatibility issues is to set my default ‘Save As’ to 2003 format.
Word 2007
- Click the Office Button

- Click Word Options

- Click Save from the left-hand pane

- Select “Word 97-2003 Document (*.doc)” from the “Save files in this format:” dropdown

- Click OK