You can actually download it by choosing old versions in creative cloud manager.
Do you know what version of Edge Animate it was created in?
Open the edge.js file in a text editor and you should see the version around line 19.
If it is version 2014 let me know and i will help you.
BTW, to list older apps, go to your Preferences in the CC desktop app and click on the Creative Cloud Tab. Enable the preferences to display older apps. Hope this helps.
Thanks! That's what I was missing, wasn't seeing it in the CC app before.
Good luck on your project!