How to make BlingBling.edj into BlingBling.etheme

I know BlingBling 2.0 is made for e22, but has the extension .edj. Is there a possibility to change that to the extension .etheme?

It will not work on E16 might work on E23 though.

E16 uses text files in /usr/share/e16 and ~/.e16.

To install E23 (aka enlightenment) do "api enlightenment", after successful install, log out and opt for "enlightenment" as your desktop.
if you want to you can easily log back into e16 by logging out again, it wont be touched.

Be aware that E23/Enlightenment is still very unstable (albeit workable enough) and in testing stage, so do look here, before you do start using it: