Batch Converting 100 HEIC Files: Which Tool Actually Handles It?

https://dibz.me/blog/when-iphone-photos-wont-open-on-windows-practical-ways-photographers-can-send-client-files-without-the-drama-1048

When a Wedding Photographer Has 100 HEIC Files to Deliver: Alex's Friday Night Alex shot a small backyard wedding on an iPhone and delivered 100 HEIC files to a client who specifically asked for JPEGs