In an enterprise environment, microsoft-office-2016-installer.pkg was frequently utilized for mass deployment via management tools.
Common Deployment Methods:
Cause: You downloaded a Volume License (VL) version of microsoft-office-2016-installer.pkg but have a Retail product key, or vice versa. microsoft-office-2016-installer.pkg
Fix: Microsoft uses different installer builds for VL (business with KMS activation) and Retail (home users). Download the correct installer from your respective portal: Cause: You downloaded a Volume License (VL) version
If your situation matches all four, then microsoft-office-2016-installer.pkg remains a viable tool. pkgutil --expand microsoft-office-2016-installer
pkgutil --expand microsoft-office-2016-installer.pkg ~/Desktop/expanded_pkg