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....Deutsch عربي 简体中文 Conversion from PPT to PPTX format in Aspose.Slides...the developers to access the PPT using Presentation class instance...