unfortuntely it is not possible for the receiver to open the file without downloading the program wich also brinngs a virus. so how can i export it into another format that i can send via mail?

This my friend, is what we call paranoia! AND, opening a file that was sent via email is much more risky for catching viruses than downloading a software on a legal site!
So PLEASE, do not spread half-knowledge if you do not know what's up!