I'm not really sure what you're asking for. ZotFile is a third-party plugin that can extract the annotations you've added to PDF. MLA style is a format that you'd select when generating citations and bibliographies in Zotero itself or Zotero's word processor plugins. Those aren't really related, so I'm not clear what you mean.
Yes, bwiernik, that is what I mean.
This is an example of an extracted annotation:
""Don Quixote, a compendium of all previous literary genres, [...] his novel." (Wardropper 1965:12)
Instead of (Wardropper 1965:12), I would like to have (Wardropper 12), which is in MLA format.
Thanks for your help.