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....supports the popular spreadsheet (XLS, XLSX, XLSM, XLSB, XLTX, XLTM...allows exporting Excel® files to PDF, DOCX, PPTX, JSON, XPS, HTML...