At a product launch event in New York Monday, Microsoft gave the media a day-early peek at Mac Office 2011, which went on sale at retail outlets and via Microsoft this morning. Eric Wilfrid, general manager of Microsoft's Mac business unit, explains how Mac Office 2011 is faster than previous versions, not only in startup, but in the execution of key tasks.

Among the key differences in the new Mac Office over old versions is the appearance for the first time of a Mac version of Outlook, which takes the place of Entourage, which a Microsoft representative said was simply not meeting the needs of users. Also included in Mac Office 2011 are new versions of Word, Excel and PowerPoint and a new user interface based on the ribbon menu interface first featured in the 2007 edition of Office for Windows.

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