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....CATION and PR_ATTACH_CONTENT_ID tags to determine the nature...MapiPropertyTag . PR_ATTACH_CONTENT_ID ) ? att . getPropertyString (...