Spline from excel and points to excel

Hi!

I'm not experienced programmer, so every little help would be very appreciated.
Problem No. 1
This macro create points in catia from excel. Now, I'd like to make a spline from these points also from excel. but I'm not able to do that. I tried, but not success.
Problem No. 2
I need to export points coordinates back from Catia to Excel. I can run excel from Catia, but I'm not able to export data too.

Can someone help me?
Files are attached

Rastislav

Author: Rastislav Richter