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.... get ( 0 ); //Adding a comment to "F5" cell int commentIndex...getComments (). add ( "F5" ); Comment comment = sheet . getComments ()...