How to download version 2? (Need to open an .aeon2 file)

I have an old timeline I’d like to reopen. It’s from version 2, with the extension .aeon2, which I understand is an older file type that can’t be upgraded in V3 (which I own). I believe I need to open the file in V2, save it again as .aeonzip format, then open that file in V3. However, I can’t find a V2 download. Can anyone point me in the right direction?

Here is the page where you can download version 2 from: