How Do I Play AVI Files On My iPad?
We normally use VLC on a Mac for playing AVI files, but currently the iOS version doesn't support that. So instead, we use It's Playing and it works perfectly!
Once downloaded, you simply launch iTunes on your computer, connect to your iPad, and select the Apps tab. Click on It's Playing under Apps in the File Sharing section and then you can drag and drop AVI files into that window that will be synced to your iPad.