An open fileformat is a fileformat for storing digital data, defined by an openly published specification usually maintained by a standards organization
HEIC files. Such files require less storage space than the equivalent quality JPEG. HEIF files are a special case of the ISO Base Media FileFormat (ISOBMFF
ISO/IEC 14496-12:2004 (MPEG-4 Part 12: ISO base media fileformat), which is directly based upon the QuickTime FileFormat, which was published in 2001. MPEG-4
1.14 released. Free Software Foundation, Inc. Retrieved February 25, 2016. WARC FileFormat specifications The WARC FileFormat (ISO 28500) - Information