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....Español Svenska Türkçe 日本語 XLS or XLSX Export Contents [ Hide ]...to deliver reports in the XLS and XLSX format without loss of layout...