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....versions) in different formats (XLS, XLSX/XLSM, XLTX, XLTM, XLSB...Convert Excel spreadsheet to XPS document Read and Write OpenDocument...