BExIS.IO.Transform.Output.ExcelWriter.IsTemplate C# (CSharp) Метод

        public bool IsTemplate(Stream file)
        {
            this.FileStream = file;

            // open excel file
            spreadsheetDocument = SpreadsheetDocument.Open(this.FileStream, false);

            // get workbookpart
            WorkbookPart workbookPart = spreadsheetDocument.WorkbookPart;

            try
            {
                // get all the defined area
                List<DefinedNameVal> namesTable = buildDefinedNamesTable(workbookPart);

                if (namesTable.Where(p => p.Key.Equals("Data")).FirstOrDefault() != null
                    && namesTable.Where(p => p.Key.Equals("VariableIdentifiers")).FirstOrDefault() != null)
                {
                    return true;
                }
            }
            catch
            {
                return false;
            }

            return false;
        }