Upload code to arduino with .exe file, run file

I really don't know even how to start with this.

Then, this isn't the project for you.

There are menu items on the IDE. You could study them, and learn what each one does. There just might be a clue or two lurking on the File + Preferences menu, for instance. Something about verbose output...

We want to do this, so people with no knowledge of the arduino coding

Like you?

but still be able to type in the number the gsm shield has to sends texts to, and a part of the message it will then send.

You can forget that part.