encrypted file like table

public static string Decrypt(string stringToDecrypt)
       {
           MemoryStream ms = null;
           byte[] inputByteArray = new byte[stringToDecrypt.Length + 1];
           try
           {
               byte[] key = { };
               string sEncryptionKey = "!#$a54?3";
               byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };

               key = Encoding.UTF8.GetBytes(sEncryptionKey);
               DESCryptoServiceProvider des = new DESCryptoServiceProvider();
               inputByteArray = Convert.FromBase64String(stringToDecrypt);
               ms = new MemoryStream();
               CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(key, IV), CryptoStreamMode.Write);
               cs.Write(inputByteArray, 0, inputByteArray.Length);
               cs.FlushFinalBlock();
               System.Text.Encoding encoding = System.Text.Encoding.UTF8;
               return encoding.GetString(ms.ToArray());
           }
           catch (Exception e)
           {
               return e.Message;
           }
           finally
           {
               ms = null;
           }
       }

public static string Encrypt(string stringToEncrypt)
        {
            MemoryStream ms = null;
            try
            {
                byte[] key = { };
                string sEncryptionKey = "!#$a54?3";
                byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };
                key = Encoding.UTF8.GetBytes(sEncryptionKey);
                DESCryptoServiceProvider des = new DESCryptoServiceProvider();
                byte[] inputByteArray = Encoding.UTF8.GetBytes(stringToEncrypt);
                ms = new MemoryStream();
                CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(key, IV), CryptoStreamMode.Write);
                cs.Write(inputByteArray, 0, inputByteArray.Length);
                cs.FlushFinalBlock();
                return Convert.ToBase64String(ms.ToArray());
            }
            catch (Exception e)
            {
                return e.Message;
            }
            finally
            {
                ms = null;
            }
        }