Hi!
I am currently writing a macro for Excel and I have hit a problem.

Here is my working Macro code.

Sub dialight()
   Range("B1").Select
   ActiveCell.Offset(1, 0).Select
   Do While ActiveCell.Value > ""
       If ActiveCell.Value = "DIALIGHT" Then
           ActiveCell.Offset(0, -1).Select
           ActiveCell.Value = ActiveCell.Value + "F"
           ActiveCell.Offset(1, 1).Select
         Else
           ActiveCell.Offset(1, 0).Select
       End If
   Loop
End Sub

This works perfectly but the problem I have is if someone runs the
Macro twice, the ActiveCell.value will end of having 2 Fs at the end of
it which will cause huge problems further down the line.

How can I can check to see if the ActiveCell.Value already has an F at
the end of it?

Thanks,
Owain.