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....Instantiate a Workbook object. // Open an Excel file. Workbook workbook...workbook = new Workbook ( "Book1.xls" ); // Specify XOR encryption...