public static void ConvertToXml()
 {
     string[] lines = File.ReadAllLines(@"H:\SSIS\Source\Intermediate.csv");
     Dictionary<string, Submission> submissions = new Dictionary<string, Submission>();
     foreach (var line in lines)
     {
         var row = line.Split(',');
         var submissionId = row[0];
         if (submissions.ContainsKey(submissionId))
         {
             var submission = submissions[submissionId];
             submission.PolicyDrivers.Add(Driver.FromCsv(row));
         }
         else
         {
             submissions[submissionId] = Submission.FromCsv(row);
         }
     }
     XElement xml = new XElement("Submissions", submissions.Values.Select(s => s.ToXElement()));
     xml.Save(@"H:\SSIS\Destination\demo xml.xml");
 }