@TechnicalSupport 

Thanks for all of the help.

@Samir Khan 

The specific issue in this sheet is an unintended recursion in the last cell, I typed 'V' instead of 'F' in the input. I could easily fix the problem if the software didn't immediately evaluate the cell an crash when the file is opened. What I need is a way to disable evaluation before the worksheet opens. Also, it would be nice if the commercial software intended for proffesional use didn't crash and corrupt because of a simple recursion issue. Even SMath can handle this.