A user reported today that her Excel started to crash when she downloaded a Google Sheet from her Google Drive, after we installed ESRI Maps for Office. The download from Google Drive launches Excel, but it doesn't crash until you click the "Enable Editing" button
I was able to replicate the problem on my workstation. The Event Log entry for the fault is:
Faulting application name: EXCEL.EXE, version: 14.0.7151.5001, time stamp: 0x555f7e9e
Faulting module name: KERNELBASE.dll, version: 6.1.7601.18847, time stamp: 0x554d7bd0
Exception code: 0xe0434352
Fault offset: 0x0000c42d
Faulting process id: 0x28a8
Faulting application start time: 0x01d0b9b27ad5145d
Faulting application path: C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
Faulting module path: C:\WINDOWS\syswow64\KERNELBASE.dll
Report Id: bb7c2a2d-25a5-11e5-9cb5-a0d3c129cacd
The problem goes away when ESRI Maps for Office is uninstalled.