To import the path you could use the vectorizer it is here …
Objects- Spline primitive- Vecortizer
Then in the attribute manager (bottom right of the screen) about midway down it says “texture” then “…” those three periods are the botton to browse your files.
Once you have your path you can use multiple ways of making it 3d.
easyest is the Extrude nurbs
objects- nurbs- extrude nurbs
All you have to do with it is make it the parent to your path. (drop the path in under the extruder)
Then you could try the sweep nurbs too
Object- nurbs- sweep nurbs
The sweep nurbs always uses two shapes…so you want to add another shape like a square or circle and your vector shape.
Make sure your shape is the youngest child. So you hiarchy would look like this:
SweepNurbs
-square
-vectoizer (your image)
ps. All the nurbs and splines can be found in the shortcuts menu at the top of your interface but it was easyer to explane via the named menus.
Good luck
/randy