public ActionResult Export()
        {
            ReportViewModel ReportModel = new ReportViewModel();
            using (var db = HttpContext.GetOwinContext().Get<ApplicationDbContext>())
            {
                var prettifiedNumbers = db.PrettifiedNumbers.ToList();

                //Get Top Most used Prettified Numbers
                ReportModel.TopMostUsedPrettifiedNumbers = (from num in prettifiedNumbers
                                                            group num by num.PrettifiedCategory into g
                                                            orderby g.Count() descending
                                                            select new { Category = g.Key }).Select(t => t.Category).ToList();
                //Get Prettified Numbers Counts Per User
                ReportModel.PrettifiedNumbersByUsers = prettifiedNumbers.GroupBy(p => p.User).Select(result => new UserStats { Email = result.Key.Email, PrettifiedNumbersCount = result.Count() }).ToList();

            }
            return View(ReportModel);
        }
        public ActionResult ExportExcel()
        {
            ReportViewModel ReportModel = new ReportViewModel();
            using (var db = HttpContext.GetOwinContext().Get<ApplicationDbContext>())
            {
                var prettifiedNumbers = db.PrettifiedNumbers.ToList();

                //Get Top Most used Prettified Numbers
                ReportModel.TopMostUsedPrettifiedNumbers = (from num in prettifiedNumbers
                                                            group num by num.PrettifiedCategory into g
                                                            orderby g.Count() descending
                                                            select new { Category = g.Key }).Select(t => t.Category).ToList();
                //Get Prettified Numbers Counts Per User
                ReportModel.PrettifiedNumbersByUsers = prettifiedNumbers.GroupBy(p => p.User).Select(result => new UserStats { Email = result.Key.Email, PrettifiedNumbersCount = result.Count() }).ToList();

            }
            Response.AddHeader("content-disposition", "attachment; filename=PrettifierReport.xls");
            Response.ContentType = "application/ms-excel";
            return View("exportexcel", ReportModel);
        }