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....the popular spreadsheet (XLS, XLSX, XLSM, XLSB, XLTX, XLTM, CSV...Microsoft Project ® documents (MPP/MPT/XLS) without even using Microsoft...