MX Simulator

Hey everyone, I build tracks for MX Bikes & had a quick question about a file I received with sim track normals. The person that sent them over to me had said they were made public but doesn’t know who they came from. So I wanted to make this post in hopes of finding the creator of them, and just make sure it’s cool for me to use them. If anyone could point me in the right direction that would be a huge help. I don’t want to rip anything and I want to make sure these files were actually made public & what not. A few pics of the track are attached for anyone interested in seeing some pics