The Office 2016 for Mac Preview - March 13, 2015 update provides targeted bug fixes for Microsoft Outlook and Microsoft Excel.
Issues that the update fixes
This update provides the following fixes and improvements.
ExcelFixes an issue that can cause Excel to stop responding to mouse clicks.
OutlookFixes program crashes that occur when you start Outlook.
To install this update, you must be running OS X Yosemite 10.10 or a later version.
How to obtain the update
Microsoft Download CenterThis update is available to download from the Microsoft Download Center: