Here is the official download link for MicrosoftOfficeLicenseRemoval tool. (thanks for @lidroider's comment) The Serializer.pkg in this gist is signature by Microsoft Corporation Official. To check it, you can see details in this comment. Office 2016 16.11 for macOS VL2 license. Purpose: You wish to deploy Office 2016 using the Microsoft Office Customization Tool (OCT) and PDQ Deploy to n machines within your organization. Notes: While this deployment is for 32-bit Office 2016 ProPlus, the steps can be easily modified for any Office 2016. Microsoft Office Suite Removal Tool is an application that can help you remove Microsoft Office 2003, 2007, 2010, 2013, and 2016 from your computer, when every other method fails.

Don't launch Office 365 on your reference machine. If you do, you'll need to uninstall it and reinstall it. Don't do an in-place upgrade from Office 2016 to Office 365. Do a fresh install instead. Here's what Microsoft has to say about going this route.

This document explains how to completely uninstall Office 365.

You may experience issues with Outlook that are often resolved by performing a full uninstall/reinstall of Microsoft Office. Examples of possible errors that could be resolved by fully uninstalling Office 365 include: Inability to open up Office 365 applications, receiving error messages, sporadic issues that result in lack of fully functionality, etc.

Verify version of Office - it is highly recommended you install Office ProPlus version.

Uninstall Office

Removal Key Tool Office 2016 For Mac

Important: If you intend to install Office 365 onto the computer, follow these steps:

1. Remove credentials - 'Reset/Remove your account credentials from within your OS' section.
2. Install Office 365 - download/install.

See Also:

Microsoft Office 2016 For Mac License Removal Tool