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....Formaten wie XLS, XLSX, DOC, DOCX, HTML, PDF, PPT zu öffnen, zu ändern...mindestens der Microsoft Excel Viewer auf dem System installiert...