ISOBMFF-Explorer is an introspection utility that displays the structure and data of files conforming to the ?ISO Base Media File Format? standard (ISO/IEC 14496-12). Such file formats include: - QuickTime (.mov) - MPEG-4 (.mp4, .m4v, .m4a, etc.) - HEIF/HEIC (.heif, .heic, etc.) - 3GP (.3gp)