Examples? As thus far everything I've put in has seemed to work just fine without really taking ! or $ into account.that depends on what you are importing. Both ! and $ have very specific functions in the game, and you activate or deactivate those functions by placing the flags in the filename. And that completely depends on what kind of spritesheet you have. For some sprites you have to add them to work correctly, for other you must not add them at all.
I just remember having to use it for EVERYTHING in VX.