MS Office (now primarily known as part of Microsoft 365) is a suite of productivity applications that includes core programs like Word (word processing), Excel (spreadsheets), and PowerPoint (presentations), along with others such as Outlook (email/calendar), OneNote (note-taking), and cloud services like OneDrive (file storage) and Teams (collaboration). The content revolves around creating documents, managing data, crafting presentations, organizing communications, and collaborating on projects, with features like formulas, styles, templates, multimedia integration, and intelligent AI tools built into the applications.