You should follow some steps which have given if you are a student, and need to write your article or thesis properly with any style. You can also suggest or ask anything in comment section below to add.
Office 365 - Importing styles on your document
This video is Turkish with English subtitle. If you have any question, please do not hesitate to ask on comment section below.
In this example; you will see how you can import any style document which has been sent you or downloaded, and apply to your current document.