Before you remove Office for Mac 2011, quit all Office applications and make sure there's nothing in Trash that you want to keep. To uninstall Office for Mac 2011 move the applications to the Trash.Once you've removed everything, empty the Trash and restart your Mac to complete the process. Application availability and features that come with Office 365 vary by platform and device current Office application versions for Office 365 are Office 2019 for Windows and Office 2019 for Mac.
1 Office 365 is compatible with Windows 7 or later, and Mac OS X 10.10.