I have a .dll how do I get that to work on Samsung S9+ Gear VR

I am trying to create a file from 3DS max interactive that I can walk around in the gear VR.

I have done the device ID and produced the output file for Gear VR from 3DS Max which is a .dll

I would appreciate it if someone could point me in a basic step by step guide on how I get that .dll to work on my phone with the gear vr?