This may seem like an impossible question but I'm going to ask anyway because I'm at the end of my rope.
I didn't know this would happen because whenever I save AEP files it doesn't usually ask about what version to save as, or maybe the option to save as a legacy version was there the whole time and I didn't see it. Anyways, I was under the impression that AEP files were universal like PSDs even though certain features might not be available depending on how new your program is.
My work computer runs OSX Lion using Adobe CC 2014, while my home computer runs OSX10.7.5 (Snow Leopard I think) and Adobe CS5 v10. Therefore, when I tried downloading a trial of AECC it didn't work because I don't meet the system requirements.
Is there any way to get around this without me having to commute back to the office just to re-render a 30 second video?
You will have to open the project in 2014 then save as a CC, then open in CC and save as CS6, then open in CS6 and save as CS5. That's the only way.