So the HEIC format is eventually going to replace JPG as a 4K+ version of photos. Lots of Apps are going to the new format, but Windows hasn't caught up yet (they're working on it). Macs should handle them fine right now.
Anyway, I found a file converter and here is my neighbor's tree, which fell exactly on top of where he parks his enclosed track trailer with his race bikes in it. He was at the track when the tree fell - talk about luck! I was out there early AM and got 90% of it cut up into manageable bits before the rain hit.