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....the modified presentation to a PPTX file. The following code is..."ChartTrendLines_out.pptx" , aspose . slides . SaveFormat . Pptx ); } finally...