title: Getting metadata by NSFileManager
body: <p>I am working with NSFileManager and I am able to get the file's last update, creation date, ... but I am not able to get when was the last time the file was opened. Is there any way to get this information?</p>
  
  <p>And other question, I get the MIME by the pathExtension property, but this way I get for example .pdf, .doc, ... instead of application/pdf, application/doc, text/txt, audio/vmw, ...is any way to get this information automatically?</p>
  
  <p>Thanks a lot!</p>