Class 59 ARC Livery4th February 2019
First you MUST extract all files out of the .AP File located in the Class 59 folder. BEFORE you follow the steps below otherwise the reskin wont work
Once you have done the above steps copy and paste the Assets folder into your Train simulator installation folder SteamLibrary\steamapps\common\RailWorks and then run the included .BAT File which should then install everything correctly.
Dovetail Games Class 59 available from Steam