In some engine folders, the GeoPcDx files are completely missing, such as in the Canadian Pacific ES44AC folder. when I download reskins of the TrainSimCommunity, they tell me to copy the GeoPcDx files, but I can't, since I don't have them. Anyone know whats going on??
No need to extract the whole .ap file, just open the .ap with 7zip (or winzip or winrar) and drag the geos into the required folders (it will not remove them from the .ap it will just copy them in the new location which is what you want).
I can't say this applies in your case but for many trains only one livery has the GeoPxDx files, with all other liveries just using that one.