Excel 2007 error opening file, unreadable content

I have 50 people all on the same laptop build.  Win7, Office2007.  They export a spreadsheet from a website and one user cannot open it.  The error is Excel found unreadable content and asks to restore, but this will not work because itn't a spreadsheet generated from the local machine.

Other users can open the file fine.  In fact, you can send the file from the machine that cannot open it to another machine and it works fine.  You cannot open the file in Excel 2010 either.  Instead, you have to change some of the rows to be formatted differently.  

My question is what setting in excel do you think is making this 2007 version behave like the 2010 because I need to remove it.

I've uninstalled and reinstalled Office.