DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   VFAT
      <operating system> A standard developed by Microsoft to
      enable long file names on standard FAT partitions.  VFAT
      suffers from all the drawbacks of FAT and adds more problems
      but moving to it is very easy.
      (1996-12-23)