Interpolate curve from points

Hello! I am trying to create a smooth surface throught with the command interpolate curve through points. Nonetheless, the curves don´t go all the way through to the end. The origin lines are actually one line split in two, I don´t know if this is the correct way to get the surface, but it is the only one I know since you cant loft a surface with open and closed curves. Thanks in advance (13.8 KB) Curvas2.3dm (92.1 KB)

seems that your files are not complete.

You should also internalise all of the curves into the crv-component and upload the gh-file only.