[xybydy]

It's an option to download NFO files when exporting to .strm files. Your library will take the metadata in the NFO when adding your videos to your library.
Thanks @xybydy for the feature.

thanks for the update, may i ask what are the benefits of use NFO files instad of just strm. files? 

To make Kodi recognize the movies correctly. Especially on non-english movies, Kodi tends to recognize movies incorrectly or just gives up and don't add it to the library at all. Nfo files prevents this kind of issues.