循环工作表并根据日期范围复制公式

Question

我正在寻找有关我的代码的帮助。我想遍历多个工作表并将第一行中的公式复制到最后一行，行依赖于该月的日期。 这是我的代码示例;

Sub RECON_CALC2()
  Dim sheet As Worksheet, Last As Long, rng As Range

  Application.ScreenUpdating = False
  Windows("testbook.xlsx").activate

  For Each sheet In ActiveWorkbook.Worksheets
    If sheet.Index > 3 Then
      Last = Range("B3").End(xlDown).row
      Sheet.Range("F3") = "=VLOOKUP(R[-2]C[-1],'CLIENT YLD'!C1:C8,4,0)"
      Sheet.Range("E3:T3").Copy
      Sheet.Range("E3:T" & Last).Copy Destination:=sheet.Range("E3:T" & Last)
      Sheet.Columns("R:T").NumberFormat = "0.000000"
      Sheet.Columns("A:T").EntireColumn.AutoFit
    End If
  Next
  MsgBox "RECON COMPLETE"
  Windows("Macro.xlsm").activate
  Application.ScreenUpdating = True
End Sub

代码适用于所有工作表，但范围错误。