Sub test()
Dim filePath$, fileName$
fileName = Format(DateSerial(Year(Date), Month(Date) - 1, 1), "mm-yyyy") & " " & "Boulogne" & ".xlsx"
filePath = "Z:\****\archive\" & fileName
If Not checkFile(filePath) Then Call save.save_lastmonth
End Sub
Function checkFile(filePath$)
If Dir(filePath) <> "" Then
checkFile = True
Else
checkFile = False
End If
End Function