Как объявить глобальную переменную в VBA?

Public iRaw As Integer
Public iColumn As Integer

Function find_results_idle()
    iRaw = 1
    iColumn = 1

Function AddSomeNumbers() As Integer
    Dim intA As Integer
    Dim intB As Integer
    intA = 2
    intB = 3
    AddSomeNumbers = intA + intB
End Function
'intA and intB are no longer available since the function ended

Public intA As Integer
Private intB As Integer

Function AddSomeNumbers() As Integer
    intA = 2
    intB = 3
    AddSomeNumbers = intA + intB
End Function
'intA and intB are still both available.  However, because intA is public,  '
'it can also be referenced from code in other modules. Because intB is private,'
'it will be hidden from other modules.

Global iRaw As Integer
Global iColumn As Integer

Public Var1 As variant     'Var1 can be used in all
                           'modules, class modules and userforms of 
                           'thisworkbook and will preserve any values
                           'assigned to it until either the workbook
                           'is closed or the project is reset.

Dim Var2 As Variant        'Var2 and Var3 can be used anywhere on the
Private Var3 As Variant    ''current module and will preserve any values
                           ''they're assigned until either the workbook
                           ''is closed or the project is reset.

Sub MySub()                'Var4 can only be used within the procedure MySub
    Dim Var4 as Variant    ''and will only store values until the procedure 
End Sub                    ''ends.

Sub MyOtherSub()           'You can even declare another Var4 within a
    Dim Var4 as Variant    ''different procedure without generating an
End Sub                    ''error (only possible confusion). 

Dim iRaw As Integer
Dim iColumn As Integer

Function find_results_idle()
    iRaw = 1
    iColumn = 1
End Function

Function this_can_access_global()
    iRaw = 2
    iColumn = 2
End Function

Public Numerator As Integer

Public Sub saveAttachtoDisk(itm As Outlook.MailItem)
Dim objAtt As Outlook.Attachment
Dim saveFolder As String
Dim FileName As String

saveFolder = "c:\temp\"

     For Each objAtt In itm.Attachments
            FileName = objAtt.DisplayName & "_" & Numerator & "_" & Format(Now, "yyyy-mm-dd H-mm-ss") & ".CSV"
                      objAtt.SaveAsFile saveFolder & "\" & FileName
                      Numerator = Numerator + 1

          Set objAtt = Nothing
     Next
End Sub

Option Compare Database 
Option Explicit
''***********************************''
' Name: Date: Created Date Author: Name 
' Current Version: 1.0
' Called by: 
''***********************************''
' Notes: Explain Who what when why... 
' This code Example requires properties to be filled in 
''***********************************''
' Global Variables
Public GlobalData As Variant
''***********************************''
' Private Variables
Private ObjectReference As Object
Private ExampleVariable As Variant
Private ExampleData As Variant
''***********************************''
' Public properties
Public Property Get ObjectVariable() As Object
   Set ObjectVariable = ObjectReference
End Property 
Public Property Get Variable1() As Variant 
  'Recommend using variants to avoid data errors
  Variable1 = ExampleVariable
End property
''***********************************''
' Public Functions that return values
Public Function DataReturn (Input As Variant) As Variant
   DataReturn = ExampleData + Input
End Function 
''***********************************''
' Public Sub Routines
Public Sub GlobalMethod() 
   'call local Functions/Subs outside of form
   Me.Form.Refresh
End Sub
''***********************************''
' Private Functions/Subs used not visible outside 
''***********************************''
End Code

Public Sub Method1(objForm as Object)
   'read/write data value
   objForm.GlobalData
   'Get object reference (need to add Public Property Set to change reference object)
   objForm.ObjectVariable
   'read only (needs Public property Let to change value)
   objForm.Variable1
   'Gets result of function with input
   objForm.DataReturn([Input])
   'runs sub/function from outside of normal scope
   objForm.GlobalMethod
End Sub

Private Const SrlNumber As Integer = 910

Private Sub Workbook_Open()
    If SrlNumber > 900 Then
        MsgBox "This serial number is valid"
    Else
        MsgBox "This serial number is not valid"
    End If
End Sub