Workbook workbook = new Workbook ();
workbook.LoadFromFile("funds-test.xlsx");
ICustomPropertiesCollection customProperties = workbook.Worksheets[0].CustomProperties;
for (int i = 0; i < customProperties.Count; i++)
{     
XlsCustomProperty xcp = customProperties[i];     
string name = xcp.Name;    
 string value = xcp.Value; 
}

ole.OleOriginName

Workbook.TrackedChanges=true;//default value is false

Workbook.SetGlobalCustomFontsFolders(string[] fontPath);

PdfStandardsConverter converter = new PdfStandardsConverter(stream);
converter.Options.PreserveAllowedMetadata = true;

string chromeLocation = baseDirectory + "chrome\\Chrome-bin\\chrome.exe";
ChromeHtmlConverter converter = new ChromeHtmlConverter(chromeLocation);
ConvertOptions options = new ConvertOptions();
options.Timeout = 10 * 1000;
options.PageSettings = new PageSettings()
{
    PaperWidth = 8.77,
    PaperHeight = 6.20,
    MarginBottom = 0,
    MarginTop = 0,
    MarginLeft = 0,
    MarginRight = 0
    };
converter.ConvertToPdf("https://www.e-iceblue.com/", outputFile, options);

var pdfAsStream = new MemoryStream();
string chromeLocation = baseDirectory + "chrome\\Chrome-bin\\chrome.exe";
ChromeHtmlConverter converter = new ChromeHtmlConverter(chromeLocation);
ConvertOptions options = new ConvertOptions();
options.Timeout = 10 * 1000;
options.PageSettings = new PageSettings()
{
    PaperWidth = 8.77,
    PaperHeight = 6.2,
    MarginBottom = 0,
    MarginTop = 0,
    MarginLeft = 0,
    MarginRight = 0
    };
converter.ConvertToPdf("https://www.e-iceblue.com/", pdfAsStream, options);

pdfDocument.ConvertOptions.SetPdfToXlsxOptions(new XlsxLineLayoutOptions(true, false, false)); //bool convertToMultipleSheet, bool rotatedText, bool splitCell

Presentation ppt = new Presentation();
ppt.LoadFromFile("1.pptx");
ppt.SaveToFile("1.md", FileFormat.Markdown);
ppt.Dispose();

OcrScanner scanner = new OcrScanner();

// Create a new instance of the ConfigureOptions class to set up the scanner configuration
ConfigureOptions configureOptions = new ConfigureOptions();

// Set the path to the model
configureOptions.ModelPath = @"D:\Model&Lib\Model\V4.Server";

// Set the path to the dependency libraries
configureOptions.LibPath = @"D:\Model&Lib\Lib\V2.7\Net\X64";

// Specify the language
configureOptions.Language = "Chinese";

// Apply the configuration options to the scanner using the ConfigureDependencies method
scanner.ConfigureDependencies(configureOptions);

scanner.Scan("test.tif");