You could use a macro

Sub trimall()
Application.ScreenUpdating = False
Dim myRange As Range
Set myRange = Range("A1:D1000") '< Change to suit
For Each c In myRange
c.Select
c.Value = Trim(c.Value)
Next c
Application.ScreenUpdating = True
End Sub

Mike

"fitou_learn" wrote:

Is it possible to trim an entire worksheet?