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....$v_page_breaks -> add ( "Y30" ); \ # Saving the modified Excel file in...Excel 2003) format $workbook -> save ( $dataDir . "Add Page Breaks...