Maybe the person who gave you the clip can export it in another format for you? As has been said, HEVC didn't come along until 2013. Final Cut Express was discontinued in 2011, so that's just not going to work. Sorry, I don't know what formats would be compatible. But a google search finds a number of websites that claim you can upload HEVC clips and they'll convert them to different formats. Caveat emptor, I don't know how legitimate any of them are, but that might be a solution for you.
(Note: I added "Express" to the thread title to avoid further confusion. 🙂 )