Simple question...sorry.

What is the .exe for GunZ in an injection?

its Gunz.exe(or GunZ.exe)i dont know exatly.

first is gunZ.exe and the .exe mean of it a program an "executable file" not an injector

First it doesnt really matter if its gunz or gunZ, same game XD be .exe is a shortcut for executable file but it doesnt only say that in gunz, beside gunz a loosy game pass to CA