Microsoft Excel has encountered a problem

[suehoege]

While attempting to access an Open XML format based spreadsheet we get the
error message:

“Microsoft Excel has encountered a problem and needs to close. We are sorry
for the inconvenience.â€

Excel may stop responding after this error message and you can’t access file
contents.

 

[Leung]

Are you sure the Open XML format based spreadsheet is stick the Excel2007
specification ?

you should rename the file from ABC.xlsm to ABC.xlsm.zip

then unzip it.

for detail struture, have a look at this link:
http://msdn.microsoft.com/en-gb/library/dd819387.aspx