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....achieve efficient compression LZMA, PPMd and BZip2 compression...7z archive composition with LZMA, LZMA2 or Bzip2 compression...