I am unable to inverse column selection I'm receiving error 424 Object required.
Code works fine with manual selection such as this
Set MyRange = Selection
Sub Text2Numb()
    Dim ws As Worksheet
    Set ws = ActiveSheet
    Dim MyRange As Range
    Dim MyCell As Range
    Set MyRange = Range("A:M").Select
    For Each cell In MyRange
        If cell.Value > 0 Then
            cell.Value = -cell.Value
        Else
            cell.Value = -cell.Value
        End If
    Next cell
End Sub
Runtime Error 424 Object required
 
    