Tutorial - Modeling a Taper helix in SolidWorks?

Here is the tutorial.
Step 1:
Start SolidWorks in part mode.
Step 2:
Top plane>>Sketch.
Step 3:
Draw a circle of 25mm dia.
Step 4:
Curves>>helix and spiral.
Step 5:
Defined by Pitch and revolution and pitch = 2.5mm and revolution = 10, start angle = 0º and Clockwise.
Step 6:
Top plane>>sketch.
Step 7:
Select the sketch under helix and then convert entities.
Step 8:
Curves>>helix and spiral.
Step 9:
ame pitch and revolution be 5. Change it to counterclockwise with taper helix 23.00º inward.
Step 10:
We have the helix generated.
Step 11:
We can sweep along the curves.