In my CAD program you can specify what machine you can apply to a
line(s).

Like a cut, bend etc.

And you can see your work with a 3D view as you go along.

This program will export a DXF file and I was wondering -- is the bend
information in a DXF file as well? (All I see in my viewer is the
complete piece outline with all the holes I need).

I would imagine it has to be right? But typically you wouldn't see the
bend lines in a DXF viewer?

Thanks.