curves through XYZ points

I have been using Solidworks feature curves through XYZ points for drawing 3D airfoil. Does that feature ensures that the curve passes through all points or Solidworks uses these points as a control point and uses some curve like B-SPline, NURBS to draw curve which passes close to all these points?

Does Solidworks have any feature which will draw curves passing through given set of points??

SolidworksParts And Features