Stl and Iges Import

Hello,

I have an stl and an iges file that both don't seem to import into Solidworks well.  The stl ends up having 182 gaps between the imported surfaces so it ends up not making a solid. 

The iges gives me the error "unable to read IGES file. File was truncated or contains invalid data."  however that doesn't seem correct because I can open the file in Creo or Inventor just fine (I do not know those software packages enough to be able to edit the file). 

Am I doing something wrong to import either of these files?

SolidworksImport export