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....// Save the presentation as a PPTX objPres . SaveAs ( "VSTOSampleChart"...direction. Save the presentation to PPTX format. public static void GEN_ASPOSE_Chart...