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" , Export . SaveFormat . Pptx ); } SmartArtShapeCollect... Save ( "out.pptx" , Export . SaveFormat . Pptx ); } Methods...