There are two TRIM functions. In the worksheet TRIM removes leading and
trailing spaces. It also removes "extra" internal spaces.
In VBA, TRIM leaves the "internal" spaces alone. If you want to do the
automatic worksheet-style TRIM, then select the cells and run:
Sub dural()
For Each r In Selection
a = r.Address
r.Value = Evaluate("Trim(" & a & ")")
Next
End Sub
This will convert the values in-place