from aspose.cells import HtmlSaveOptions, SaveFormat, Workbook # For complete examples and data files, please go to https:# github.com/aspose-cells/Aspose.Cells-for-.NET # The path to the documents directory. dataDir = RunExamples.GetDataDir(".") # Specify the file path filePath = dataDir + "Book1.xlsx" # Specify the HTML Saving Options sv = HtmlSaveOptions(SaveFormat.M_HTML) # Instantiate a workbook and open the template XLSX file wb = Workbook(filePath) # Save the MHT file wb.save(filePath + ".out.mht", sv)