Sub Insert()
If Sheet1.Range("D60000").End(xlUp).Row - 1 < 5 Then
MsgBox ("Khong co du lieu")
Exit Sub
ElseIf Evaluate("luu") = 0 Then
ActiveWorkbook.Names.Add Name:="luu", RefersToR1C1:="=" & Sheet1.Range("D60000").End(xlUp).Row - 1
Rows("5:" & Sheet1.Range("D60000").End(xlUp).Row - 1).Insert Shift:=xlDown
Else
k = Evaluate("luu")
Rows("5:" & k).Delete
ActiveWorkbook.Names.Add Name:="luu", RefersToR1C1:="=" & Sheet1.Range("D60000").End(xlUp).Row - 1
Rows("5:" & Sheet1.Range("D60000").End(xlUp).Row - 1).Insert Shift:=xlDown
End If
End Sub