OOReader is an app for Android phone and tablet, to view ODF documents (Writer, Calc, Impress, ) created with OpenOffice or LibreOffice. The supported file types are: Text Document (ODT, OTT, ODM, SDW, STW, SXW). Spreadsheet (ODS, OTS, SDC, STC, SXC). Presentation (ODP, OTP, SDD, SDP, STI, SXI). Drawing (ODG, OTG, SDA, SXD). Formula (ODF). Word (DOC, DOT, DOCX, DOTX).