1. Microsoft Excel

Excel is a spreadsheet application developed by Microsoft Corporation. It was first released in 1985 as a 32-bit add-in for MS-DOS. In 1987, Excel became a stand-alone product. Since then, it has become one of the most popular office applications. Excel is used for analyzing data, calculating formulas, graphing, charting, and many other tasks.

2. Microsoft Word

Word is a word processing program produced by Microsoft Corporation. It is designed to help people create documents, spreadsheets, letters, and presentations. It was originally called Multiplan, and was introduced in 1983. Word is used for writing documents, editing text, formatting text, adding tables, inserting graphics, and many other tasks

3. Microsoft PowerPoint

PowerPoint is a presentation software created by Microsoft Corporation. It includes tools for making slideshows, creating charts, drawing diagrams, and much more. PowerPoint is used for creating presentations, business reports, and slide shows.

4. Microsoft Outlook

Outlook is a personal information manager (PIM) developed by Microsoft Corporation. Its features include calendar management, contact management, task management, e-mail, and notes. Outlook is used for managing appointments, contacts, tasks, and emails.

5. Microsoft Access

Access is a database program developed by Microsoft Corporation. Access provides users with a way to store and retrieve data using a relational database model. It is used for creating databases, building forms, and generating queries.

6. Microsoft Project

Project is a project planning tool developed by Microsoft Corporation. Users can use it to plan projects, manage schedules, track costs, and generate reports. It is used for scheduling, estimating, tracking time, budgeting, and reporting.

7. Microsoft Publisher

Publisher is a desktop publishing (DTP) program developed by Microsoft Corporation for Windows operating systems. It is used for producing newsletters, brochures, magazines, books, flyers, posters, and other printed materials.