how to import x,y components of spline??

Option Explicit
Option Base 1

Sub Main()
    'SolidWorks Objects
    Dim swApp As Object
    Dim Part As Object
    'Excel Objects
    Dim xlApp As Object
    Dim wb As Workbook
    Dim ws As Worksheet
    Dim iRow As Long
    Dim ptX() As Long, ptY() As Long
    Dim sMsg As String
    
    'Attach to Solidworks
    Set swApp = CreateObject("SldWorks.Application")
    Set Part = swApp.ActiveDoc
    
    'Open Excel and the Data Workbook
    Set xlApp = CreateObject("Excel.Application")
    Workbooks.Open FileName:="C:\Data.xls", ReadOnly:=True
    Workbooks.Application.Visible = True
    Set wb = xlApp.ActiveWorkbook
    Set ws = wb.Sheets("Sheet1")
    
    'Extract the data (X in col A, Y in Col B)
    iRow = 1    'first row of data
    Do While Len(ws.Range("A" & iRow).Text) > 0
        ReDim Preserve ptX(iRow)
        ReDim Preserve ptY(iRow)
        ptX(iRow) = ws.Range("A" & iRow).Value
        ptY(iRow) = ws.Range("B" & iRow).Value
        iRow = iRow + 1
    Loop
    
    'Close Excel
    xlApp.Quit
    
    'Report the info back to the user
    For iRow = LBound(ptX) To UBound(ptX)
        sMsg = sMsg & "Point " & iRow & ": (" & ptX(iRow) & ", " & ptY(iRow) & ")" & vbCrLf
    Next iRow
    swApp.SendMsgToUser sMsg
    
    Set ws = Nothing
    Set wb = Nothing
    Set xlApp = Nothing
    Set Part = Nothing
    Set swApp = Nothing
End Sub