Remember BNG you guys?
Yes you do come on it was pretty big until a bunch of internal politics, loss of focus and stupid deadlines killed it.
Anyway I have pretty much 90% of the files we produced on my hard drive
I mean it would be a shame to let this many files go to waste, right?
Anyway, you'll need the program Blender to open the files, that would be available at blender.org
Oh and I guess I'll have to note that there's no actual guarantee that any of these files actually work in newer versions of Blender, but the backwards compatibility is generally really good.