Option Explicit
Sub HideDone()
Dim rngCel As Range
Application.ScreenUpdating = False
Cells.EntireRow.Hidden = False
For Each rngCel In Range(Cells(1, "F"), Cells(Rows.Count, "F").End(xlUp))
If rngCel.Value = "Done" Then rngCel.EntireRow.Hidden = True
Next
Application.ScreenUpdating = True
End Sub