The code executes the following straightforward macro in the same sheet, thus I must repeat it for each sheet. How do I change the code?
Sub Macro1()
'
' Macro1 Macro
'
Dim ws As Worksheet
    For Each ws In Worksheets
        With ws
            Application.Goto Reference:="R1C1"
            Cells.Select
            Selection.UnMerge
            Columns("D:D").Select
            Selection.Delete Shift:=xlToLeft
            Columns("E:E").Select
            Selection.Delete Shift:=xlToLeft
            Application.Goto Reference:="R10C9"
            Range("J10").Select
            Range(Selection, Selection.End(xlToRight)).Select
            Range(Selection, Selection.End(xlDown)).Select
            Selection.EntireColumn.Delete
        End With
    Next ws
End Sub