Basic system files are incompatible between various operating systems and each operating system has its own native binary formats for them. Many system files have their file attribute set to hidden, so they aren't visible to users, as a preventive measures. If any of these files are missing or corrupted, the operating system usually doesn't work correctly or doesn't start at all.
System files are very important group of file formats, which are used by computer operating systems. System file extension list File extensions used for computer operating systems internal use and which are required for proper and healthy functionality of any operating system.
