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.... Replace ( ":" , " " ). Replace ( "\\" , " " ). Replace ( "..."?" , " " ). Replace ( "/" , " " ); msg . Save ( $"{contactName}...