Sub Keepx()
With Range("F5:AG33")
.Replace "x", "=x", xlWhole, , False, , False, False
.SpecialCells(xlConstants).ClearContents
.Replace "=x", "x", xlWhole, , False, , False, False
End With
End Sub
Sub KeepXes()
[F5:AG33]=[IF(F5:AG33="x","x","")]
End Sub