This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see Microsoft Security Bulletin MS16-042. Microsoft Office 2016 for Mac includes versions of Word, Excel, PowerPoint, OneNote, and Outlook that are designed for the Mac and yet are unmistakably Office. The April 12, 2016, update provides fixes for issues in the Office 2016 for Mac Suite that affect Word, Excel, PowerPoint, and OneNote.
To install this update, you must be running OS X Yosemite 10.10 or a later version, and you must have a valid Microsoft Office 365 subscription. Additionally, see more information about Office 365 subscription options.
If you already have Office for Mac 2011 installed, you can run Office for Mac 2011 and Office 2016 for Mac side-by-side. If you want to remove Office for Mac 2011, see Uninstall Office 2011 for Mac.
If you are prompted for a password when you install this update, enter the administrator password on Mac OS X. For more information, see Mac OS X: Software installations require administrator password.
For a complete list of affected versions of Microsoft Office software, see KB3148775.
Improvements and fixes
This update provides the following fixes and improvements.
The Add-ins Store, where you can browse for tools that can increase your productivity in Word and enhance your documents
The Add-ins Store, where you can browse for tools that can increase your productivity in Excel and enhance your spreadsheets
Microsoft Auto Update for Mac version 3.4.0
Improved performance and support for alternative versioning schemes
How to obtain and install the update
Method 1: Microsoft AutoUpdate for Mac
This update is available from Microsoft AutoUpdate. AutoUpdate is provided together with Office. It automatically keeps Microsoft software up-to-date. To use AutoUpdate, start a Microsoft Office program, and then click Check for Updates on the Help menu.
Method 2: Microsoft Download Center
This update is available for download and installation from the Microsoft Download Center:
Security update deployment information
For deployment information about this update, see Microsoft Knowledge Base article 3148775.
Update replacement information
This security update replaces security update 3138327.