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....setActiveCell ( "A20" ); //Split the worksheet window $book ->...getWorksheets () -> get ( 0 ) -> split (); //Save the excel file $book...