Converting an .lxf file to something usuable - How?

Gents:

I just obtained a nearly 5 gig file that I'm told is a proprietary format.

Leitch/Harris' VR native stream format (LXF).

Media Info or Premiere Pro does not recognize it.

I was advised that FFMPEG can deal with it however I know nothing about command line programs.

Downloaded Win FF ( Front end GUI) and fiddled around.

How do I get this rewrapped to .mov?

It may have already been compressed.

Can't get it to preview play.

Thanks