How to minimize/eliminate polygon edges when render

Help, can anyone help with minimizing/eliminate polygon edges when rendering a imported file. I imported a file from 3DS Max into Sketchup and try to render it in Maxwell. I am seeing the artifacts of the polygons showing up in the rendered image:
image
The imported file has thousands of polygons. Is there a Sketchup mode to soften the polygon edges or ideally completely blended them together so that when rendered they won’t show up? Thank you in advance for any suggestion.

Select the geometry, right click and choose Soften/Smooth.

Dave,

Thank you. You have saved the day.