How do i uninstall Office 365 from my iMac including all it's apps

The easiest thing to do is install App Cleaner (which is free) and this will automatically remove all components connected to Office on your Mac. Otherwise, like others have pointed out, you have to find all the files yourself manually which can be complicated and messy. Here are full instructions for how to uninstall Office 2016 for Mac but it also applies to Office 365. Hope it helps!

https://support.office.com/en-us/article/Troubleshoot-Office-2011-for-Mac-issues -by-completely-uninstalling-before-you-reinstall-ba8d8d13-0015-4eea-b60b-7719c2c edd17?ui=en-US&rs=en-US&ad=US&fromAR=1

Remove Office 2016 for Mac applications

1. Open Finder and click Applications.
2. Command +click to select all of the Office 2016 for Mac applications.
3. Ctrl+click or right-click the applications you selected and click Move to Trash.

Remove files from your user Library folder

To remove files from your user Library folder, you'll need to first set the Finder View options.

1. In Finder, press +Shift+h.
2. On the Finder menu, click View > as List, and then click View > Show View Options.
3. In the View Options dialog box, select Show Library Folder.
4. Switch back to Column view (+3) and click <YourUserName>Library > Containers and ctrl+click or right-click each of these folders if present, and then click Move to Trash.
   • com.microsoft.errorreporting
   • com.microsoft.Excel
   • com.microsoft.netlib.shipassertprocess
   • com.microsoft.Office365ServiceV2
   • com.microsoft.Outlook
   • com.microsoft.Powerpoint
   • com.microsoft.RMS-XPCService
   • com.microsoft.Word
   • com.microsoft.onenote.mac
5. Switch back to Column view (+3) and click <YourUserName>Library > Group Containers and ctrl+click or right-click each of these folders if present, and then click Move to Trash.
   • UBF8T346G9.ms
   • UBF8T346G9.Office
   • UBF8T346G9.OfficeOsfWebHost

Thank you