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....Presentation Files PPTX files—items with the .pptx extension—are stored...pres = new Presentation ( "pres.pptx" ); try { String keywords =...