You can try the macro located at the following site:
http://www.aac-solutions.cz/apps/importcoord/index.html
It is supposed to do splines, but is not exactly the easiest to
use. make sure you follow the instructions on the website.
BTW, I'm the one who wrote the readpoints macro you tried out.
I have plans to expand it to do splines, but have not had much time
to work on it. It is now part of an addin I wrote that is available
on Sean's MCadForums site under Addins (Inventor Tools Preview).
Bob S.
wrote in message news:4898829@discussion.autodesk.com...
Does anyone know how to make a spline automatically fit through sequential work points? I found a nifty program that turns excel
data into work points, but I was hoping for a shortcut to make the points into a spline and then a region to loft.