Microsoft has added new file formats to the 2007 versions of Word, Excel, and PowerPoint to reduce file size, improve reliability, and enhance integration with external sources.
To help ensure that you can exchange documents between Microsoft Office releases, Microsoft has developed a Compatibility Pack for the Word, Excel, and PowerPoint 2007 File Formats. By installing the Compatibility Pack (Beta 2 Technical Refresh) alongside Microsoft Office 2000, Office XP, or Office 2003, you will be able open, edit, save, and create files using the robust file formats new to the 2007 Microsoft Office system.
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