Help! Need to convert Inventor 2012 files to SolidWorks

Hi,

I am having trouble using Inventor viewer to convert the files to SolidWorks.  If you could convert to SolidWorks 2014 or older, that would be greatly appreciated.  I really just need the assembly (dprchibikart.iam) as a giant STEP file and then I can take it from there.

SolidworksImport export