A Mac OS X version of Office 2007 is also being developed, by Microsoft's Macintosh Business Unit called Office 2008 and slated for release in the second half of 2007.[22]

Microsoft has also confirmed that this will be the first Office Application to support Apple's Universal Binary to take full advantage of Apples new Intel Mac Architecture.

Office for the Mac does not include many of the programs included for the Windows version as they do not have Mac equivalents (such as Microsoft Access). Word, Excel, Powerpoint and Equation Editor are included, as is a Mac-only e-mail program, Microsoft Entourage. Emulation software Microsoft Virtual PC was included in Professional edition of Office 2004 for Mac, but it has been announced that the software is no longer in development.[23] Mac-only features announced to be included include a publishing layout view, which offers functionality similar to Microsoft Publisher for Windows, a Ledger Sheet mode in Excel to ease financial tasks, and a light and small "My Day" application offering a quick way to view the day's events.

The new version of Mac Office will support the new Office Open-XML standard format; however, it has also been announced that Microsoft Visual Basic for Applications will not be supported in this and future versions.