Trim Macro: Trim All Of The Data From Rows 2:30 Removing Any Trailing Spaces After The Last Word In Each Cell

I have come up with this to Trim all of the data from rows 2:30 removing any trailing spaces after the last word in each cell. The macro takes a couple of minutes to run have I got something wrong that is making it run slowly or does the Trim process just take longer?

Sub TRIM_RANGE()
Dim myRange As Range
Dim myRow As Range
Sheets("CAMPAIGNS_2007").Select
Set myRange = Range("2:30")
If myRange Is Nothing Then Exit Sub
Application. ScreenUpdating = False
myRange.Replace What:=Chr(160), Replacement:=Chr(32), _
LookAt:=xlPart, SearchOrder:=xlByRows, MatchCase:=False
For Each myRow In myRange.Columns
If Application. CountA(myRow) > 0 Then
myRow.TextToColumns Destination:=myRow(1), _
DataType:=xlFixedWidth, FieldInfo:=Array(0, 1)
End If
Next myRow
Application.ScreenUpdating = True
End Sub