Visual Basic para Aplicaciones - Mostrar Hojas invisibles en las pestañas de Excel protegidas con VBA

Sub Desproteger_Libro()

    Dim i As Integer, j As Integer, k As Integer, Texto As String, _

        l As Integer, m As Integer, n As Integer, Tecla As Integer

    Texto = "Realmente desea desproteger el libro actual?"

    Tecla = vbCritical + vbYesNo + vbDefaultButton2

     If MsgBox(Texto, Tecla, "DesprotegerLibro") = vbYes Then

       On Error Resume Next

       For i = 65 To 66: For j = 65 To 66: For k = 65 To 66

           For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66

               For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66

                   For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126

                       ActiveWorkbook.Unprotect Chr(i) & Chr(j) & Chr(k) & Chr(l) & _

                                                Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _

                                                Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)

                       If ActiveWorkbook.ProtectStructure = False And _

                          ActiveWorkbook.ProtectWindows = False Then

                          MsgBox "El libro está ahora desprotegido", _

                                  vbInformation + vbOKOnly, "DesprotegerLibro"

                          Exit Sub

                       End If

                   Next: Next: Next:

               Next: Next: Next

           Next: Next: Next:

       Next: Next: Next

    End If

End Sub

Sub Desproteger_Hoja()

    Dim a As Integer, b As Integer, c As Integer,d  As Integer, e As Integer, f As Integer

    Dim a1 As Integer, a2 As Integer, a3 As Integer, a4 As Integer, a5 As Integer, a6 As Integer

    On Error Resume Next

    For a = 65 To 66: For b = 65 To 66: For c = 65 To 66

        For d = 65 To 66: For e = 65 To 66: For a1 = 65 To 66

            For a2 = 65 To 66: For a3 = 65 To 66: For a4 = 65 To 66

                For a5 = 65 To 66: For a6 = 65 To 66: For f = 32 To 126

                    Contraseña = Chr(a) & Chr(b) & Chr(c) & Chr(d) & Chr(e) & Chr(a1) & _

                                 Chr(a2) & Chr(a3) & Chr(a4) & Chr(a5) & Chr(a6) & Chr(f)

                     ActiveSheet.Unprotect Contraseña

                     If ActiveSheet.ProtectContents = False Then

                       MsgBox "¡Enorabuena!" & vbCr & "Se ha quitado la contraseña:" & vbCr & Contraseña

                       Exit Sub

                    End If

                Next: Next: Next

            Next: Next: Next

        Next: Next: Next

    Next: Next: Next

End Sub