Visual basic activate a specific worksheet on a form load event

See more:

VB

I have created a project with the following components/ events:
1. create a VB ribbon
add forms to buttons on the ribbon.
Open the relevant form when the Ribbon button is clicked.
2. Added an excel spreadsheet from my local computer in the same project.

I managed to open the forms from the ribbon and now want to add a procedure o the form load event that will activate the relevant worksheet so that the user can see details that currently exist in the worksheet (to add users into a table).

Any assistance would be greatly appreciated.

What I have tried:

RIBBON CODE:
Imports ExcelApplication
Imports Microsoft.Office.Interop.Excel
Imports Microsoft.Office.Tools.Ribbon

Public Class Ribbon1
    Dim UserForm As frmUserCreate

    Private Sub Ribbon1_Load(ByVal sender As System.Object, ByVal e As RibbonUIEventArgs) Handles MyBase.Load

    End Sub

    Private Sub btnAddUser_Click(sender As Object, e As RibbonControlEventArgs) Handles btnAddUser.Click

        UserForm = New frmUserCreate
        UserForm.Show()

    End Sub

USER FORM CODE:
Public Class frmUserCreate
    Private ReadOnly Application As Object
    Dim WrkSht As Users
    Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
        Me.Close()
    End Sub

    Private Sub Cancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel.Click
        Me.Close()
    End Sub

    Private Sub frmUserCreate_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        CType(Application.ActiveWorkbook.Sheets(1), Excel.Worksheet).Select()
    End Sub