okay, cheers thanks alot

Hello, new to here

I use google sketch as an easy way og buiding architecture models etc. for my animations. I export my models into 3ds then import it into Blender (great piece of 3D software), but how can I get rid of those black outlines on my model? I have tried to toggle them off before under the view tab, but it was still there when I have exported it with Blender, how can I get rid of them all at once without having to select, delete, select, delete?