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....add_page_breaks ( workbook ) worksheets = workbook . getWorksheets...(that is Excel 2003) format workbook . save ( @data_dir + "Add...