3.1 Mobile Office suite, general features: LibreOffice vs.2.6 Most important extensions for desktop LibreOffice.2.5 Desktop Database program: LibreOffice Base vs.2.4 Desktop Presentation software: LibreOffice Impress vs.2.3 Desktop Spreadsheet applications: LibreOffice Calc vs.2.2 Desktop Word processors: LibreOffice Writer vs.2.1 Desktop Office suite, general features: LibreOffice vs.2 Desktop office: Notebooks, Desktop computers, Chromebooks.