Microsoft just released the Microsoft Office 2007 Beta 2 Technical Refresh (download here) to the masses. One of the interesting parts Microsoft Office Compatibility Pack for Word, Excel and PowerPoint 2007 File Formats, are also updated as B2TR
With this download (available in English, Japanese, French, German and Spanish) you can open, edit, save and create Microsoft Office 2007 files using Microsoft Office 200, Microsoft Office XP or Microsoft Office 2003.