Android Question problems opening email attachment with intent

Dim Intent1 As Intent
    Intent1 = Activity.GetStartingIntent

    If Intent1.Action = "android.intent.action.VIEW" Then    ' The activity has been called from outside the app
           
    Dim jo As JavaObject
    Dim cd As String = jo.InitializeStatic("anywheresoftware.b4a.objects.streams.File").GetField("ContentDir")
    Dim UriString As String = Intent1.GetData
    Dim Inp As InputStream  = File.OpenInput(cd , UriString)
    Dim Out As OutputStream = File.OpenOutput(File.DirInternal, "emailtransfer.txt", False)


    File.copy2(Inp, Out)
    Inp.Close
    Out.Close