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....org/spreadsheet/how-to.html#xssf_sax_api...rds/Ecma-376.htm * <p/> * A web-friendly version is http://openiso...