How fill face between irregular curves? Hello Blender Stack Exchange,

I am trying to fill a face between 4 surfaces. Two are straight edges and two are a curved line made up of short vertices that came from a SketchUp export.

The problem: I select the vertices on the top and bottom and fill the hole. It creates a strange face that ruins the curve. I would prefer it create some sort of complex curve. I want it to be smooth.

Images attached to better explain.
To deal with curves like that you need to use the Bridge Edge Loops tool.

If you use the fill tool (F) blender creates a very ugly Ngon on connecting all of the vertices like this:


Using bridge edge loop tool will give you the proper curve: