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....document, an Excel workbook, and a PDF document as OLE objects on the..."fileInput" accept = ".xls,.xlsx,.xlsm,.xlsb" /> < button id...