dataSet = SqlHelper.ExecuteDataset(SqlHelper.connStr, CommandType.StoredProcedure, procName, new SqlParameter(fieldFileName, fileName));
            table = dataSet.Tables[0];
            string path = @"C:\Users\Administrator\Desktop\" + fileName;
            foreach (DataRow row in table.Rows)
            {
                using (FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))
                {
                    byte[] fileByte = (byte[])row[fieldFile];
                    int arraySize = fileByte.Length;
                    fs.Write(fileByte, 0, arraySize);
                }
                Process.Start(path);
            }