: Office 2019 for Mac reached its official end of support on October 10, 2023 , meaning it no longer receives security or feature updates. Common Issues and Activation
: If you are on an older OS (like 10.12.6), you may need to use the Microsoft Office License Removal Tool before attempting a clean install of build 16.29. Microsoft Office 2019 16.29
Are you trying to this on an older Mac, or are you having trouble activating an existing installation? Office 2019/ Microsoft 365 build 16.29.1 - Apple Community : Office 2019 for Mac reached its official