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Problem:
A user has Excel 2010 and is attempting to open an Excel document from our Office 365 Sharepoint server. Excel Crashes when attempting to open the file with a faulting file "mso.dll"
Modifiers
The same file, when dowloaded and opened locally does not cause Excel to crash. Other Excel files from the sharepoint server continue to force it to crash.
Anyone have any ideas as to what the problem may be?
Update
A different user in my org is reporting the same issue. Updates were installed last night for both of these users. Anticipating that may be the issue. Testing now. Updates installed last night were:
KB3093983 Security Update 10/14/2015 NT AUTHORITY\SYSTEM
KB3097966 Security Update 10/14/2015 NT AUTHORITY\SYSTEM
UPDATE 2
Appears to be related to opening a ".xls" or ".xlsx" file from Sharepoint (office 265) in Excel 2010. Might be related to a "trusted sites" issue.
Update 3 - December 4th
Removing the updates listed above no longer seems to fix the issue. Looks like it is a new update or something that is breaking it again.
Windows updates don't appear to be the cause, as a third user in our org who can successfully open the file, was able to grab all of the updates from last night, and can still open the file.
So far I have tried a repair install of office, and adding the site to the compatibility list in IE 11.
Same issue with Chrome and IE11. – None – 2015-10-14T22:45:24.710
Removed update KB3055034, of which there were 3. Issue appears resolved, verifying now. – None – 2015-10-15T14:11:41.303