Microsoft-office-2016-installer.pkg

Microsoft ended mainstream support for Office 2016 for Mac on October 13, 2020, and extended support ended on September 12, 2023. This means:

In 2026, running a 10-year-old installer is an act of faith or folly.

Consider the cryptographic signatures. The microsoft-office-2016-installer.pkg is signed with a Developer ID certificate that expired years ago. Modern macOS versions (Ventura, Sonoma, Sequoia) will look at this file and show a popup: “This package is from an unidentified developer. Apple could not verify it is free from malware.”

But here is the paradox: The 2016 installer is actually more secure than a pirated copy of Office 2026. Why? Because it doesn't have a live network connection to a telemetry server that can be exploited. microsoft-office-2016-installer.pkg

However, the risks are non-zero:

The file named microsoft-office-2016-installer.pkg is a software package file used to install Microsoft Office 2016 on Apple’s macOS operating system. It is the original installer format distributed by Microsoft for the 2016 suite of Office applications, including Word, Excel, PowerPoint, Outlook, and OneNote.

A .pkg file (macOS Installer Package) is a compressed archive containing files, scripts, and metadata required to install software on a Mac. Unlike dragging an application to the Applications folder (as with .app bundles), .pkg files often run an installation wizard that may place components in multiple system locations, check for prerequisites, and require administrator privileges. Microsoft ended mainstream support for Office 2016 for

Microsoft released multiple iterations of the 2016 installer. Each had a distinct build number and checksum. Key versions include:

The filename microsoft-office-2016-installer.pkg was reused across these builds, making it impossible to discern the exact version without examining the package metadata or file size (typically between 1.2 GB and 2.4 GB).

Important: Office 2016 reached end of support on October 13, 2020. Extended support (security updates only) ended for most editions by April 2023. The filename microsoft-office-2016-installer

This means:

If you must keep Office 2016, take these precautions: