To install individual Microsoft Office applications on mobile, you can go to the App Store for iOS or the Play Store for Android and search for Microsoft Office.Users must at least connect to the Internet once every 30 days for the Microsoft to verify that he/she is still eligible for the program.When the license expires, you will have read-only access to your Microsoft Office files, but new documents cannot be created. When a student completed his /her study at HKUST or graduated or a staff left the university, he/she will lose his/her license shortly.Microsoft will release latest office updates to Microsoft 365 Apps.
You may refer knowledge base article on How to Install Office or the following set up guides from Microsoft: