Office is a suite of utilities: Word, Excel, PowerPoint, and Entourage. Microsoft Office is the defacto standard for business. Word is a powerful word processing application, that has a lot of control over the content and layout of documents. Excel brings the power of computer data processing to the desktop. PowerPoint is a full featured presentation program. And Entourage is more than just an email program, it is a full featured PIM (personal information manager). This version of office is fully Mac OS X native.