Microsoft Office is like a bundle of tools, all of which can be used in intricate ways. There are many versions, since the program has been around for years. The best way to Microsoft Office is to check out Selkirk College locally for courses, because there is so much to learn.
Microsoft Office used to have free versions on the computer, but now there are subscription versions which have more features.
This is a simplified answer, to a simple question. For more details, try a different question such as “How do I get Microsoft Office?”