Android Cloud SDK & REST APIs to build apps for rendering & viewing images, HTML, PDF, Word, Excel, Email, Visio, Project & CAD file formats....Word: DOC, DOCX, DOCM, DOT, DOTX, DOTM Excel: XLS, XLSX, XLSM...IGS DOCX ML SVGZ XZ SH PSB MPT DOTX ODT JPX LOG CPP EPS MPP JPEG...