CSMSL.IO.MzML.IndexListType.LoadFromFile C# (CSharp) Method

        public static IndexListType LoadFromFile(string fileName)
        {
            System.IO.FileStream file = null;
            System.IO.StreamReader sr = null;
            try
            {
                file = new System.IO.FileStream(fileName, FileMode.Open, FileAccess.Read);
                sr = new System.IO.StreamReader(file);
                string xmlString = sr.ReadToEnd();
                sr.Close();
                file.Close();
                return Deserialize(xmlString);
            }
            finally
            {
                if ((file != null))
                {
                    file.Dispose();
                }
                if ((sr != null))
                {
                    sr.Dispose();
                }
            }
        }