By default, iPad running on iOS 7 does not have an application that plays files in AVI format. The standard video player plays only MP4 files and H.264 codec. In order to play your AVI movies, videos, tutorials and so on with your iPad, you’ll have to use a third-party app. Such third-party apps are, for instance: VLC, CineXPlayer, FlexPlayer, HD Player, etcetera.