• File Extensions
  
  File-Extensions.org is a large list of the filename extensions with detailed explanations of each filetype and the way they are used today. File extensions are usually 3 or 4 letter codes at the end of file names.
  application computer data date extension extensions file filename files filetype format open software type types windows
  in Public bookmarks with add-ons computer extensions file_extensions internet reference by 8 users

file_extensions from all users