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 Opening a Presentation in VSTO and Aspose.Slides...opening presentation: string FileName = "Open Presentation.pptx"...