Technic won't download as a .jar file

[BootlegNinja]

So I want to play sky factory on the technic launcher but for some reason whenever I try downloading the technic launcher it always downloads as a .zip file. I have tried renaming the file to a .jar file, but the format still stays the same. I have watched multiple video tutorials on how to download/install the technic launcher yet none of them have helped me with this problem. Please help.

OS: OS X El Capitan

Java version: 66

Minecraft version: 1.12

[AetherPirate]

Grab Java JDK for Mac and try it

 

http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

[BootlegNinja]

Thanks aetherpirate.