Following is a brief summary of Office versions since its inception in 1989 for the Mac. See Microsoft Office
Office 2013 (Office #15)
Designed for touchscreens and low-power devices. See Office 2013
Subscription-based version of Office with cloud storage. See Office 365
Office 2010 (Office #14)
Retained the Ribbon interface introduced with Office 2007 and added numerous features along with sharing and social enhancements. See Office 2010
Office 2007 (Office #12)
A major update to Office featuring a new Ribbon user interface and new file formats. See Office 2007
and Office file formats
Office 2003 (Office #11)
Support for XML and data collaboration. Office files could be saved as native XML for easier integration with other applications, and Microsoft's SharePoint portal turned Office into a groupware system administered on a Web server.
Office XP (Office #10)
Added document sharing over the Web, a significant document recovery feature and integrated Hotmail service. Introduced in 2001.
Office 2000 (Office #9)
A major upgrade with numerous changes. More integrated with the Web, Office 2000 added collaboration features and support for opening and saving HTML documents, even doubling as an HTML editor.
Office 95 (Office #7) was the first 32-bit version of Office, followed by Office 97 (Office #8), which added Internet integration and Outlook. The formats in Excel 97, PowerPoint 97 and Word 97 were changed, but files could be saved in a dual 95/97 format for backward compatibility. Access 97 files were not backward compatible. The last 16-bit versions of Office were Office 4.x. See MSW abc's
MAC VERSIONS FOR OS X
Office for Mac 2011 (Intel CPU)
Version for Mac OS X 10.5.
Office for Mac 2008 (PowerPC and Intel CPUs)
Version for Mac OS X 10.4.
Office for Mac 2004 (PowerPC CPU)
Version for Mac OS X 10.2.
Office v X for Mac (2001 - Intel CPU)
Version for Mac OS X 10.1.
Earlier Mac Versions
Word for Mac was introduced with the first Macintosh in 1984, followed by Excel a year later and PowerPoint in 1987. Office for Mac came out in 1989, one year before Windows 3.0. Office 3.0, Office 4.2 and Office 98 for Mac were released in 1992, 1994 and 1998 respectively.