unorthodox:
Is it possible to convert the hexadecimal code back into the original programming language?
Mmmmmm, seems like somebody is trying to find a way to steal other's work... LOL
More seriously, if you ask such a question, it means that you have not understand at all what is compilation and what it does. I really recommend you to get a book explaining the basic concepts of programming in high level languages to understand what a compiler does...