Unable to install Xposed on Moto G (5.1.1)

Guys,

I am using CM 12.
I downloaded the zip file to be flashed through recovery and apk file.

But when i flash the arm.zip file, it is giving error saying it is a wrong download.

Can somebody point out how to install Xposed in Moto G having 5.1.1.


Cheers!!!!!!!!!!!