Contour Line Import from DWG

Hi,

i would like to import the contour lines from the attached DWG file into solidworks. Preferable into 3D straight away but at this stage even getting it into usable 2D would be great.  

I can import as a drawing but not as a sketch that i can manipulate. Is there a way without running it through another fancy software? Or if not what software and a guide on how to would be great. I was not able to find an easy way. 

Thanks for your help. 

SolidworksModeling And Assemblies