Just some instructions on how to watch 3D videos on your PC.
Latest VLC can play 360 degrees videos but to detect and switch into 3D mode it relies on metadata which is not present in OnlyTease 3D videos.
To add metadata download tool "Spatial Media Metadata Injector", open video and click "Inject metadata", video will be saved as filename_injected.mp4.
You can now open resulting file in VLC and it'll start playing in 360 degrees mode.
If you have issues opening file in Metadata Injector you can work around error using ffmpeg as following:
ffmpeg.exe -i video.mp4 -c copy video-fixed.mp4
Enjoy !