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.... OpenOffice, Json, Csv, and Html Files with C++ Rows and Columns...to Save Files with C++ Pivot Tables Manage Workbook with C++ Worksheets...