Dear respected Luke B Wagner,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
As per your description, first you no need to go to the folder and search ~/Library.
Since you post your question in Office 365 Education category, may I know are you using Office 365 Education subscription account?
If you have Office 365 work/school subscription and the assign license have “The latest desktop version of Office”. Then generally use How to remove license to use/run license removal tool to remove the license files on your Mac first. Then Restart Mac, open Office and use your work Office account now to sign in again with the account associated with your Office can fix the problem.
If you already tried to use/run license removal tool and it doesn't work on your Mac OS, then. in most cases the installation shall run successfully. Maybe the local settings had affected the application. Thus, we would like you to check whether the issue is related to your user profile. In this situation, we suggest you creating a new user profile on Mac on your Mac and see if any improvement. It is worth trying because it will help you narrow down whether the issue is caused by a specific corrupted user profile.
***Disclaimer:***Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites or any support related to technology.
Meanwhile, to narrow down your issue, please tell us more information below to let us help you:
- Confirm the version of Mac OS and Office
Find out which macOS your Mac is using
About Office: What version of Office am I using?
2.. Screenshot of your Office subscription page (Log in to Office 365 portal (www.office.com)>Settings>Office 365>subscriptions page.
3.Screenshot of error message for our reference so we can understand your exact scenario and provide our suggestion in a productive manner, perhaps some related screenshots will be helpful.
Appreciate your patience and understanding and thank you for your time and cooperation.
Sincerely,
Waqas Muhammad