I have a very simple VBA script, that capitalizes the selected cell:
Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As Boolean)
Acti
Like I mentioned, Why not a shortcut key?. You can assign a shortcut key for your macro as shown below
Now all you have to do is select the column and press the shortcut key.
Also, instead of looping through every cell in a column, here is a code which is based on a ONE LINER HACK by Peter Albert.
Put this in a module.
Sub ChangeToUpper()
Dim rng As Range
'~~> Check if what the user selected is a valid range
If TypeName(Selection) <> "Range" Then
MsgBox "Select a range first."
Exit Sub
End If
Set rng = Selection
rng = WorksheetFunction.Transpose(Split(UCase(Join( _
WorksheetFunction.Transpose(rng), vbBack)), vbBack))
End Sub
Screenshot: