ATMLUtilitiesLibrary.UTRSOfficeUtils.ProcessExcelDocument C# (CSharp) Метод

        private static Uri ProcessExcelDocument( string fullFileName )
        {
            string tempFile = string.Format( "{0}\\{1}.html",
                                             Environment.GetFolderPath( Environment.SpecialFolder.InternetCache ),
                                             Guid.NewGuid() );
            object oMissing = Missing.Value;
            object oReadOnly = true;
            object oFileType = XlFileFormat.xlHtml;
            CultureInfo saveCulture = Thread.CurrentThread.CurrentCulture;
            Microsoft.Office.Interop.Excel.Application application = null;
            try
            {
                Thread.CurrentThread.CurrentCulture = new CultureInfo( "en-US" );
                application = new Microsoft.Office.Interop.Excel.Application();
                Workbook document = application.Workbooks.Open( fullFileName, oMissing, oReadOnly, oMissing,
                                                                oMissing, oMissing, oMissing, oMissing, oMissing,
                                                                oMissing, oMissing, oMissing, oMissing, oMissing,
                                                                oMissing );
                if (document != null)
                {
                    document.SaveAs( tempFile, //File Name
                                     oFileType, //File Format
                                     oMissing, //Password
                                     oMissing, //Write Res Password
                                     oMissing, //ReadOnly Recommended
                                     oMissing, //Create Backup
                                     XlSaveAsAccessMode.xlExclusive, //AccessMode
                                     oMissing, //Conflict Resolution
                                     oMissing, //Add To MRU
                                     oMissing, //Text Codepage
                                     oMissing, //Text Visual Layout
                                     oMissing //Local
                        );
                }
            }
            finally
            {
                if (application != null)
                    application.Quit();
                Thread.CurrentThread.CurrentCulture = saveCulture;
            }
            return new Uri( tempFile );
        }