High Efficiency Image ContainerHEIC is the file extension that Apple uses for the High Efficiency Image Format (HEIF). It is known for its advanced compression, offering high-quality images at half the file size of JPEG. Developed by the MPEG group, HEIC supports 16-bit color, improving color representation and detail. It also allows the storage of multiple images in one file, making it ideal for sequences and bursts. HEIC is becoming increasingly popular due to its efficiency, quality and its usage in iPhones.