This is one of the best offices in the world its shareware so u must pay! So ms office have great features such as ms word, exel, power point, access, and many others u have also trial u can also have discount if u r student and this office is available for mac os x too ;] so recently mac os x users get even office 2008, office 2009 ;] so they r even before windows users but office is same on every os in windows & mac u can use open software like open office but some of features are not avaliable on open office so better buy ms office all people around the world use this software and they are happy i also use this, if u have slow machine i suggest u to use office 2003 its not hardware greedie like this one :)
more info crosoft Office 2007 (officially called 2007 Microsoft Office system) is the most recent Windows version of the Microsoft Office system, Microsoft's productivity suite. Formerly known as Office 12 in the initial stages of its beta  (initially referred to as the Ribbon User Interface), replacing the menus and toolbars – which have been the cornerstone of Office since its inception – with a tabbed toolbar, known as the Ribbon. Office 2007 requires Windows XP with Service Pack 2 or higher, Windows Server 2003 with Service Pack 1 or higher, or Windows Vista.
The 'Ribbon User Interface' is a task-orientated Graphical User Interface (GUI). It features a central menu button, widely known as the 'Office Button'. The Ribbon Interface has been introduced into Microsoft Office 2010.
Office 2007 also includes new applications and server-side tools. Chief among these is Groove, a collaboration and communication suite for smaller businesses, which was originally developed by Groove Networks before being acquired by Microsoft in 2005. Also included is Office SharePoint Server 2007, a major revision to the server platform for Office applications, which supports "Excel Services", a client-server architecture for supporting Excel workbooks that are shared in real time between multiple machines, and are also viewable and editable through a web page.
Microsoft FrontPage has been removed from the Office suite entirely. It has been replaced by Microsoft Office SharePoint Designer, which is aimed towards development of SharePoint portals. Its designer-oriented counterpart Microsoft Expression Web is targeted for general web development. However, neither application is included in any of the Office suites.
Speech recognition and handwriting recognition are now part of Windows Vista. Speech and ink components have been removed from Office 2007. Handwriting and speech recognition work with Office 2007 only on Windows Vista or Windows XP Tablet PC Edition. However, XP users can use an earlier version of Office to use speech recognition