As a result, such Excel add-ins dependent on VBA, such as Solver, have not been bundled in the current release. Microsoft Visual Basic for Applications is not supported in this version. On FebruGeoff Price revealed that the format conversion update for Office 2004 would be delayed until June 2008 in order to provide the first update to Office 2008. Office 2008 supports the new Office Open XML format, and defaults to saving all files in this format. Mac-only features included are 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 'My Day' application offering a quick way to view the day's events. Office 2008 for Mac includes the same core programs currently included with Office 2004 for Mac: Entourage, Excel, PowerPoint and Word.
Unlike Office 2007 for Windows, Office 2008 was not offered as a public beta before its scheduled release date. Office 2008 is the only version of Office for Mac supplied as a Universal Binary.
Office 2008 was originally slated for release in the second half of 2007 however, it was delayed until January 2008, purportedly to allow time to fix lingering bugs.