Macros

I'm having a little battle with my CorelDraw X8 and loading a macro. I found one that does what I want it to do, downloaded the .gms file and tried to find a place to put it. No luck there. Then I tried to load the new macro using the manager but it will not look for .gms files. I am, obviously, doing something incorrectly and my question is: Can anyone point me in the right direction to fix this? 

Thanks Iain