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....( var eml = MailMessage . Load ( "message.eml" )) { eml . Save...MailMessageSaveType . OutlookTemplateForma ); eml . Save ( "message.oft" , saveOptions...