Sub Intercaler()
Dim Lg&, i%
Application.ScreenUpdating = False
Lg = Range("a" & Rows.Count).End(xlUp).Row
For i = Lg To 3 Step -1
If Not IsEmpty(Cells(i - 1, "a")) Then
Cells(i, "a").EntireRow.Insert
Else
i = i - 1
End If
Next i
End Sub
Sub Intercaler()
Dim Lg&, i%
Application.ScreenUpdating = False
Lg = Range("a" & Rows.Count).End(xlUp).Row
For i = Lg To 3 Step -1
If Not IsEmpty(Cells(i - 1, "a")) Then
Cells(i, "a").EntireRow.Insert
Else
i = i - 1
End If
Next i
End Sub