RE: Export to xlsx from crm2013 SP1 UR4 issue
Hello DM,
Looking into this, I could see that this is intended behavior that is still present today in the current Online and On Premise client (Ver 9.x).
To add a little more context to what is going on here, the naming convention is "FIELD Name (entity context) (entity)" For example below I added two columns to a User view. The first was the Calendar Type from the Calendar entity, and the other was the Address from the Created By context of the User entity.
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This was implemented at some time in the past to avoid a duplicate column error that would occur within our process to create this sheet if you used multiple values with the same name from different or even the same entity. At the time the only workaround was to either rename or not use the column. For instance, in the example above, without the extra context, if you had 'Address' from User and Address from Created By user, you would have two same named Collumns of "Address (User)". Eventually, this is the solution our product group came to in order to prevent that issue.
To answer your original question, there is no means to change this behavior.
Thank you,
Ken Hubbard
Dynamics Support