private string ReadData(string fileName)
 {
     try
     {
         using (FileStream fileStream = File.OpenRead(fileName))
         {
             byte[] buffer = new byte[fileStream.Length];
             if (fileStream.Read(buffer, 0, buffer.Length) > 0)
             {
                 return(AesCrypt.DecryptStringFromBytes(buffer, Encoding.ASCII.GetBytes("zxcvqwerasdfqazx"), Encoding.ASCII.GetBytes("qazxcvbnmlpoiuyt")));
             }
             else
             {
                 throw new Exception();
             }
         }
     }
     catch (Exception)
     {
         return(string.Empty);
     }
 }