Hello

             I recently recorded a macro for importing excel files of displacement vs. time values. However, when i ran the macro after editing some of the values in the excel file to test the macro, nothing happened. I'm wondering if I'm missing some commands or a part of the code. The following excerpt is the entire macro i recorded:

Dim swApp As Object

Dim Part As Object

Dim boolstatus As Boolean

Dim longstatus As Long, longwarnings As Long

Sub main()

Set swApp = Application.SldWorks

Set Part = swApp.ActiveDoc

Dim myModelView As Object

Set myModelView = Part.ActiveView

myModelView.FrameState = swWindowState_e.swWindowMaximized

boolstatus = Part.Extension.SelectByID2("RotaryMotor1", "SIMULATION_ELEMENT", 0, 0, 0, False, 0, Nothing, 0)

Part.ClearSelection2 True

boolstatus = Part.Extension.SelectByID2("LinearMotor1", "SIMULATION_ELEMENT", 0, 0, 0, False, 0, Nothing, 0)

Part.ClearSelection2 True

boolstatus = Part.Extension.SelectByID2("LinearMotor2", "SIMULATION_ELEMENT", 0, 0, 0, False, 0, Nothing, 0)

Part.ClearSelection2 True

End Sub

I'm not familiar with the Visual Basic language so i'm not sure what 

boolstatus = Part.Extension.SelectByID2("LinearMotor1", "SIMULATION_ELEMENT", 0, 0, 0, False, 0, Nothing, 0)

Part.ClearSelection2 True

is doing, particularly what is meant by the zeroes, False and Nothing. In the end, I hope to automate the process of inputting tabulated values for the motors in solidworks motion study. I'd appreciate any help in improving the code, alternative solutions or even some  commands that could help me. Thank you.