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...."data" ); // Print the version number of Excel 2003 XLS file let...getVersion ()); // Print the version number of Excel 2007 XLS file workbook...