Assets Folder??

Last evening I download the locomotives of Norfolk Southern SD40-2 by Michael Zimmer from the site of Obo's RailWorks Locomotive Catalog. I wasn't sure where to copy/paste the locomotive files to but the readme.txt mentioned where to? And here is below:
Hi RailWork and RailSim Friends!
This is the Norfolk Southern SD40-2 Package.
Assets copy in your RailSim other RailWorks Rootfolder.
Have Fun!
Regards!
Michael.
Is that mean I have to create a new folder in Assets Folder with the name of RailSim. Or can I put these files in Kuju/RailSimulatorUS or RSC??
Your help would be appreciated where to put the files in right folder under Assets Folder.
Thank you,
John
Hi RailWork and RailSim Friends!
This is the Norfolk Southern SD40-2 Package.
Assets copy in your RailSim other RailWorks Rootfolder.
Have Fun!
Regards!
Michael.
Is that mean I have to create a new folder in Assets Folder with the name of RailSim. Or can I put these files in Kuju/RailSimulatorUS or RSC??
Your help would be appreciated where to put the files in right folder under Assets Folder.
Thank you,
John