public static void Run()
        {
            // ExStart:1
            //Source directory
            string outDir = RunExamples.Get_OutputDirectory();

            Workbook workbook = new Workbook();

            WebExtensionCollection         extensions = workbook.Worksheets.WebExtensions;
            WebExtensionTaskPaneCollection taskPanes  = workbook.Worksheets.WebExtensionTaskPanes;

            int extensionIndex = extensions.Add();
            int taskPaneIndex  = taskPanes.Add();

            WebExtension extension = extensions[extensionIndex];

            extension.Reference.Id        = "wa104379955";
            extension.Reference.StoreName = "en-US";
            extension.Reference.StoreType = WebExtensionStoreType.OMEX;

            WebExtensionTaskPane taskPane = taskPanes[taskPaneIndex];

            taskPane.IsVisible    = true;
            taskPane.DockState    = "right";
            taskPane.WebExtension = extension;

            workbook.Save(outDir + "AddWebExtension_Out.xlsx");
            // ExEnd:1

            Console.WriteLine("AddWebExtension executed successfully.");
        }