Microsoft Excel: A spreadsheet program used to create and manage data in tables and charts.Microsoft Word: A word processing program used to create and edit documents, such as letters, reports, and resumes.Some of the most commonly used programs in the MS Office suite include: The suite includes a variety of programs that are designed to help users create, edit, and manage documents, spreadsheets, presentations, and more. Microsoft Office, commonly referred to as MS Office, is a suite of productivity software applications developed by Microsoft.