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....relative path to resources : var msg = MapiMessage . Load ( sourceFileName...UseRelativePathToRes = true }; msg . Save ( Path . Combine ( "target_files"...