Applying Bug Fixes /?

I’d like to apologize for wasting your time if this question has been previously answered, but I’ve spent a couple of hours searching and I found nothing.
OK I’ve been playing forge in the past few weeks and I observed a problem with the ability of the card Gilt-Leaf Archdruid, the mana obtained once 7 druids are tapped would return to its owner command. After searching the forum I found a post in the known bugs section with a fix attached to it as a winrar archive inside of which was the file Gilt-Leaf Archdruid.E1M, and the following post was confirming this fix to work.
So my question is how do I apply this fix to my version of the game/?
OK I’ve been playing forge in the past few weeks and I observed a problem with the ability of the card Gilt-Leaf Archdruid, the mana obtained once 7 druids are tapped would return to its owner command. After searching the forum I found a post in the known bugs section with a fix attached to it as a winrar archive inside of which was the file Gilt-Leaf Archdruid.E1M, and the following post was confirming this fix to work.
So my question is how do I apply this fix to my version of the game/?