Now that Plex is supposedly officially coming to Roamios

will I be able to watch Tivo files that are on my computer without converting them to a different format that the Plex server can read? I know nothing about Plex, so excuse me if this is a stupid question. What I would like to be able to do is access all of my TiVo files stored on hard drives for viewing on my Roamio, and not just those that are linked with Tivo desktop and can be transferred back. thanks