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....newWorksheetPart ); // Get a unique ID for the new worksheet. uint sheetId...Sheet sheet = new Sheet () { Id = relationshipId , SheetId =...