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....FileName = FilePath + "Move a slide to a new position.pptx" ; MoveSlide..., 1 , 2 ); // Counting the slides in the presentation. public...