open xml file in new browser window

Hello All,
My xml file has saved on specific folder .now i want to open that xml file in new browser window.

 string fn = DateTime.Now.Day + "_" + DateTime.Now.Month + "_"                        + DateTime.Now.Year + "_Time_" + DateTime.Now.Hour + "_" +                        DateTime.Now.Minute + "_" + DateTime.Now.Second + "_"                        + DateTime.Now.Millisecond + ".Xml";             string sPath = Server.M ...