How to list archive folders

        public static void PrintViewInfo()
        {
            using (Viewer viewer = new Viewer("sample.zip"))
            {
                ViewInfoOptions viewInfoOptions = ViewInfoOptions.ForHtmlView();
                ViewInfo viewInfo = viewer.GetViewInfo(viewInfoOptions);
 
                Console.WriteLine("File type: " + viewInfo.FileType);
                Console.WriteLine("Pages count: " + viewInfo.Pages.Count);
                Console.WriteLine("Folders: ");
                Console.WriteLine(" - /");
 
                string rootFolder = string.Empty;
                PrintFolders(viewer, rootFolder);
            }
        }

        private static void PrintFolders(Viewer viewer, string folder)
        {
            ViewInfoOptions viewInfoOptions = ViewInfoOptions.ForHtmlView();
            viewInfoOptions.ArchiveOptions.Folder = folder;
 
            ArchiveViewInfo viewInfo = viewer.GetViewInfo(viewInfoOptions) as ArchiveViewInfo;
 
            foreach (string subFolder in viewInfo.Folders)
            {
                Console.WriteLine($" - {subFolder}");
                PrintFolders(viewer, subFolder);
            }
        }