You can however import the filmbox fbx file into maya and then export from there to AE
here’s a tut on importing maya cameras, it refers to old versions but the process should be the same/similar.
https://forums.creativecow.net/cgi-bin/new_page_wrapper.cgi?forumid=1&page=https://www.creativecow.net/articles/delafuente_rene/maya_cam_imp/index.html