addon pack

hi all. after the help i received several weeks ago (many tnx for that, RiotingSpectre and others), i have used XBMC on my OUYA a few times with few issues. i found an addon pack today which i would like to put on the OUYA to try out but i dont know how to go about doing that. i have downloaded it on to my PC and joined the 3 files into one rar file. how do i go about getting it on to the OUYA and working? (can i, for example, put the rar file into the folder i use to stream videos from my PC via XBMC on my OUYA?). i found some info, but am a bit thick, i'm afraid, so dont really understand it

Android (need es file explorer/manager) Android/data/org.xbmc.xbmc/files/.xbmc/addons/
Android/data/org.xbmc.xbmc/files/.xbmc/userdata/

i would appreciate any advice anyone could give

many TIA