Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....xls" ) #Save in Excel2003 format...workbook . save ( data_dir + "Book1.xls" , file_format_type . EXCEL_97_TO_2003...