Microsoft Office Word is a component of the Microsoft Office Package. Word is a text and document processor that offers multiple features and editing tools to create documents, letters, diagrams, presentations, etc. The default extension for Word documents is DOC or DOCX (newer versions of Word). This application is widely used by all the people from all around the globe due to its compatibility with most of the operating systems and its ease when it comes to working with documents. Visit Microsoft Word website to find more about it.