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.... setCellValue ( "X" ); cell . setCellStyle ( style...) 2 ); cell . setCellValue ( "X" ); cell . setCellStyle ( style...