You cannot format a column to sort.
You have to use event code in the sheet module.
Right-click on your sheet tab and "View Code"
Copy/paste this code into that module.
Private Sub Worksheet_Change(ByVal Target As Range)
Columns(1).Sort Key1:=Range("A1"), Order1:=xlAscending, _
Header:=xlGuess, OrderCustom:=1, _
MatchCase:=False, Orientation:=xlTopToBottom
End Sub
As you enter data in column A it will sort.
Gord Dibben MS Excel MVP
On Tue, 1 Aug 2006 13:29:02 -0700, Excel questions <Excel