How to open and save Word 2007, Excel 2007, and PowerPoint 2007 files in earlier versions of Office programs

If you use Office XP, Office 2003, or Office 2000 programs, and you want to open and save documents in the 2007 Microsoft Office formats, you must install the Office Compatibility Pack. You may also be required to install additional updates to your Office programs if they have not already been installed.

By installing the Compatibility Pack in addition to Microsoft Office 2000, Office XP, or Office 2003, you will be able to open, edit, and save files using the file formats new to Word, Excel, and PowerPoint 2007. The Compatibility Pack can also be used in conjunction with the Microsoft Office Word Viewer 2003, Excel Viewer 2003, and PowerPoint Viewer 2003 to view files saved in these new formats.

If you use Office XP, Office 2003, or Office 2000 programs, you might have to install updates in order to use 2007 Microsoft Office programs. Install appropriate updates if they are not already installed.

To check whether you have already installed these updates, follow these steps:

1. Click Start, and then click Run.
2. Type control appwiz.cpl into the Open box, and then click OK.
3. Click Change or Remove Programs in the Add or Remove Programs window.
4. Click Show Updates near the top of the window to make sure that Windows updates appear in the list of installed program.

If you use Office 2003 programs, you must have the following updates installed:

• 923097 Description of the update for Office 2003: October 10, 2006
• 923272 Description of the security update for Office 2003: October 10, 2006
• 923088 Description of the security update for Excel 2003: October 10, 2006
• 923091 Description of the security update for PowerPoint 2003: October 10, 2006
• 923094 Description of the security update for Word 2003: October 10, 2006

If you use Office XP programs, you must have the following updates installed:

• 918420 Description of the security update for Microsoft Excel 2002: July 11, 2006
• 917153 Description of the update for PowerPoint 2002: July 11, 2006
• 917347 Description of the update for Word 2002: July 11, 2006

If you use Office 2000, no updates are required.

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