Microsoft Word (MS Word) is a graphical word processing program that allows users to type, edit, format and print documents. It has tools to insert headers, footers, page numbers, columns, line numbers, and watermarks. Users can also add shapes, smart art, charts, text boxes and change orientation, margins and page size. MS Word allows saving documents and also has options to mail merge, insert bookmarks, cross-references, hyperlinks and adjust hyphenation.