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....MapiMessage msg = MapiMessage . fromFile ( dataDir + "message3.msg" );...out . println ( "Subject:" + msg . getSubject ()); System . out...