Is there really no way to open files is SW versions just couple years apart?

http://help.solidworks.com/2012/English/SolidWorks/sldworks/c_assemblies_previous_release.htm

I'm talking about very simple parts all made with SW stuff that has been around for a decade.

Doesn't that make things like "Content Central" nearly useless unless looking for files that might be all keep "current" by some big company?

I'm looking for basic architectual/auto interior human figures but all the ones on CC are "cannot open, future file".

Someone mentioned opening them in an "older version" but I only have 2012-13 Student.   Is there something that will open these "ancient" files from 7 years ago included in newer verisons of SW?

SolidworksDrawings And Detailing