Rhino to SolidWorks

I have a latch assy. that was sent to me from a customer that was created in Rhino and he brought it into SW and it was sent to me. Now I need to separate the parts, which I have done. Now each part is STOCK part with no features. Is there away to have it behave like a SW part with features? I tried the feature recognition but it fails.

thank you...

Dan

SolidworksImport export