HEIC file format - the basics
High-Efficiency Image File Format/Container is widely-known as HEIC file format. It was developed by The Moving Picture Experts back in 2015. This type of file format is used for storing images and animations with the support of 16-bit color depth. It means that the HEIC file format provides a high-grade image file with a rich color palette. Besides storing an image or sequence of images, HEIC can store image properties, image thumbnails, HDR data, and much more.
High image quality is the main reason why Apple chose EHHEIC as a default photo format on iOS 11 and macOS High Sierra devices. Although the HEIC file format didn't get much support from other platforms, this file extension is widely used. Recently HEIC file format got supported by Android Pie.