DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   legacy format /lˈɛɡəsi fˈɔːmat/
   Ursprungsformat <neut>, Originalformat <neut> [comp.]
      Synonyms: native format, historical format
    see: native, original