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....dataDir + "workbook.xls" ); //Instantiating a Workbook object Workbook...Workbook workbook = new Workbook ( fstream ); //Accessing the...