For One Time Use
To save an Office 2007 file as a previous version, open the original document in Office 2007.Click the Office 2007 button in the top left hand corner. (This button replaces the File menu and provides access to menu options like Open, Save, Save As and Print.)
When you press the Office button a menu list will appear. If you hold the mouse over the Save As item (without clicking) a second list will appear.
In Microsoft Word click on the Word 97-2003 Document option.
In Microsoft Excel - Click on Excel 97-2003 Workbook
In Microsoft PowerPoint - Click on PowerPoint 97-2003 Presentation
In Microsoft Access - Click on Access 2002-2003 Database
A Save As window will then appearChange the File name as required. The application will automatically add the correct file extension (ie. .doc, .xls) for Office 2003.
You can also simply change the Save as type by selecting the appropriate option from the drop down list.