Summary
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 MS15-131. 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 December 10, 2015, update provides fixes for issues in the Office 2016 for Mac Suite (Word, Excel, PowerPoint, OneNote, and Outlook).
Note 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 2011 for Mac installed, you can run Office 2011 and Office 2016 side by side.
For a complete list of affected versions of Microsoft Office software, see KB3116111.
Improvements and fixes
This update provides the following fixes and improvements:
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Outlook
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Software updates.
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Word
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Scholarly style. Added new support for custom citation styles.
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View OpenDocument Text files. Word can open OpenDocument Text (.odt) files.
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Insert screen shot. Take a simple screen capture of any open application, or clip a part of the screen, and insert the image in Word.
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Software updates.
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Excel
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View OpenDocument Spreadsheet files. Excel can open OpenDocument Spreadsheet (.ods) files.
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Insert screen shot. Take a simple screen capture of any open application, or clip a part of the screen, and insert the image in Excel.
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Software updates.
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PowerPoint
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View OpenDocument Presentation files. PowerPoint can open OpenDocument Presentation (.odp) files.
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Insert screen shot. Take a simple screen capture of any open application, or clip a part of the screen, and insert the image in PowerPoint.
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Software updates.
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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:
More Information
Security update deployment information
For deployment information about this update, see Microsoft Knowledge Base Article KB3116111.
Update replacement information
This security update replaces security update KB3102925.
Security solutions for IT professionals: TechNet Security Troubleshooting and Support
Local support according to your country: International Support
