On top of that - some of the .fbx files seem to be a combination of the skeleton animation and the mesh (ie a finished product) - so, there are at least 3 possibilites inside an .fbx file.
That applies to just about every general purpose 3d format out there.
I think you just posted the most stupid and completely pathetic post of the month.
I'm disinclined to disagree with that remark ;)