Different .exe files.

I wanted to know, what do you use to do this? Is this magic inaccessible to ordinary mortals? :)
If it is inaccessible, I would like to ask you to do it, if possible. I really like both mods.
Thank you in advance.

No magic, just a sword... that is, a program for editing .exe files in 16-bit hexadecimal format, for example, HexEditor or WinHex! The original .exe and the modified one are compared! Addresses and their values are recorded...