Envato transition

I’ve just recently subscribed to Envato. I had just downloaded 2 transitions which are .mov files. Each file has a xxx.mov and xxx-matte.mov file.

I’m using Adobe Premiere 2021, and am very knowledgeable about using it. But how do I use these transition files in my video project?
Thanks in advance.

Hello! Try to use “Track Matte Key” effect: