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....</ h1 > < input type = "file" id = "fileInput" accept = ".xls...xls,.xlsx,.csv" /> < button id = "runExample" disabled > Run Example...