<P> PowerPoint 2000 and later versions introduced macro security to help protect computers from malicious code within a PowerPoint presentation . This led to disabling all VBA or macro code by default, causing presentations containing codes unable to run properly, unless the viewer adjusted their macro security settings to the Low setting . Security Warning in PowerPoint 2007 alerts the user of macros in a presentation as soon as it is opened, giving the option to run the presentation with or without the macros enabled . </P> <P> PowerPoint is unavailable for Linux and other operating systems, meaning that unlike open - source alternatives such as SVG, animations are not portable across a range of computers or phones . PowerPoint animations however can be rendered with varying degrees of success through compatible tools such as LibreOffice Impress and Calligra Stage . </P>

Explain the various transitions used in ms powerpoint