MX Simulator

hi all need help recently got a new pc and got sim from my old pc onto this new one but for some reason if i download anything new and put it into my folder it wont show up in game and ideas??

There are two folders the game checks.

The install folder. If you right click the shortcut you start the game with and check the properties, this will be the folder on the target line. The default location is "C:\Program Files (x86)\MX Simulator". But that's just the default. The shortcut target will show the where it actually is.

Your personal folder. Every user on your system gets one of these. This is always in "%localappdata%\MX Simulator".

its all in the right places the games opens from where it should still dont know why i cant put anything new on it??

Are you trying to use zip, rar or 7z files without extracting them?