Microsoft Office is an office suite of interrelated desktop applications, servers and services for the Microsoft Windows and Macintosh OS X operating systems, introduced by Microsoft in 1989. Initially a marketing term for a bundled set of applications, the first version of Office contained Microsoft Word, Microsoft Excel and Microsoft PowerPoint.

MICROSOFT WORD
Microsoft Word is a word processor and was previously considered to be the main program in Office. Its proprietary DOC format is considered a de facto standard, although Word 2007 can also use a new XML-based, Microsoft Office-optimized format called .DOCX which has been standardized by Ecma International as Office Open XML. The first version of Word, released in the autumn of 1983, was for the MSDOS operating system and had the distinction of introducing the mouse to a broad population. Word 1.0 could be purchased with a bundled mouse, though none was required.
Word has a built-in spell checker, thesaurus, dictionary, Office Assistant (a feature to assist users by way of an interactive animated character) and utilities for transferring, copy, pasting and editing text, such as PureText (a small utility that allows users to paste the contents of the software as plain text).
"Normal.dot" is the master template from which all Word documents are created. It is one of the most important files in Microsoft Word. It determines the margin defaults as well as the layout of the text and font defaults. Although normal.dot is already set with certain defaults, the user can change normal.dot to new parameters. This will change other documents that were created using the template and saved with the option to manually update the formatting styles.
"WordArt" enables drawing text in a Microsoft Word document such as a title, watermark, or other text, with graphical effects such as skewing, shadowing, rotating,