Private Sub CommandButton1_Click()
Application.ScreenUpdating = 0
Columns("A:EO").EntireColumn.Hidden = False
End Sub
Private Sub CommandButton2_Click()
Application.ScreenUpdating = 0
Range("C:L,O:X,AA:AJ,AM:AV,AY:BH,BK:BT,BW:BX,BY:CF,CI:CR,CU:DD,DG:DP,DS:EA,EE:EN").EntireColumn.Hidden = True
End Sub