public ActionResult DownloadFile(string matchCriteria, string toggleCheck, string time, string[] columns)
        {
            var outputStream = new MemoryStream();
            var match = new Helpers.DeduplicateHelper();
            string userName = User.Identity.Name;
            var results = match.ExactMatch(matchCriteria, toggleCheck, time, 2, userName);
            MemoryStream output = new MemoryStream();

            if (results.Count() > 0)
            {
                results.RemoveAt(0);
                StreamWriter write = new StreamWriter(output, Encoding.UTF8);
                StringBuilder sb = new StringBuilder();

                foreach (var item in columns)
                {
                    sb.Append(item + ",");
                }

                write.Write(sb);
                write.Write(Environment.NewLine);
                sb.Clear();

                foreach (var list in results)
                {
                    foreach (var item in list)
                    {
                        sb.Append(item.ToString() + ",");
                    }
                    write.Write(sb);
                    write.Write(Environment.NewLine);
                    sb.Clear();
                }
                write.Flush();
                output.Position = 0;
            }
            else
            {
                Response.StatusCode = (int)HttpStatusCode.BadRequest;
                return Json(404, JsonRequestBehavior.AllowGet);
            }

            return File(output, "text/coma-separated-values", User.Identity.Name + "_" + DateTime.Now.Ticks + ".csv");
        }
        //Deduplicate#/deduplicate
        public JsonResult GetDataTemp(string matchCriteria, string toggleCheck, string time)
        {
            var match = new Helpers.DeduplicateHelper();
            string userName = "";

            if (User.Identity.IsAuthenticated)
            {
                userName = User.Identity.Name;
            }
            else
            {
                userName = "******";
            }

            var results = match.ExactMatch(matchCriteria, toggleCheck, time, 2, userName);

            if (results.Count == 0)
            {
                Response.StatusCode = (int)HttpStatusCode.BadRequest;
                return Json(404, JsonRequestBehavior.AllowGet);
            }

            return Json(results, JsonRequestBehavior.AllowGet);
        }