Under the HEVC standard – High-Efficiency Video Coding, the HEIC format, short for High-Efficiency Image Container, is greatly used by Apple.
A HEIC photo takes up about half the space of an equivalent quality JPEG file and meets many next-generation photographic needs.
However, such efficiency leads to some inconveniences in editing and converting. You will need a HEIC image player to preview, edit, and convert a HEIC image file.