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....pptx" , options )) { presentation . Save ( "pres.ppt" , SaveFormat...SaveFormat . Ppt ); } }; InterruptionTokenSou tokenSource = new...