I could never find it myself either
What 'both folders with *.tmp files' are you referring to? There is only one to exclude and that's the Work folder located here -> C:\Users\YourWindowsUserName\Cheathappens\ and the trainer exe file.
Did you try and used the trainer as 0x90's video shows? Did you use an old savegame or started a new game?
yeah i excluded Work folder and .exe file trainer. Yeah i started a new game. Also tried same as 0x90 in video show. Does nothing to me. 😭