Quick Take: Most of the changes that Word 2003 offers over Word XP have to do only with the XML file format; you won't find many new features. Users can now save, edit, and open XML documents that integrate with other applications in an organization. Word 2003 also includes some enhanced mark-up features and change-tracking functionalities that allow you to share revisions with others more easily, such as the ability to annotate text using a pen stylus on a tablet PC. For more details, see our complete Microsoft Office System review.