A small amount of descriptive data (metadata) that is added to a computer file by the user or network administrator. It is maintained by the file system but is not part of the file's regular set of ...

How do you define file formats which are "proprietary"? For example, Libre Office can save files in .doc format which is weird because I know MS like taking organisations to court over stuff like this ...

Every independent collection of data on a disk is a "file," such as a word procesing document, spreadsheet, database, image or video. An executable program, program shortcut and an icon are also files ...