Found the way to extract and convert all, its in the extract menu...
By the way,
First up warning for people thinking about buying Mafia 3:
Mafia 3 is amazing but not everyones cup of tea, especially in its current state. The graphics are below moderate (gras and nature is stunning though), game is pretty resource heavy, runs buggy crashes now and then..
Appart from that it has a lot of scripting and AI issues, scripted scenes will not work as intended, AI will drive horrible, some things will spawn in front of you, there is invisible walls, bushes are walls (Really?) there is train and tram tracks but no train, cars are not saveable and you cant (yet, as there will be a free dlc) modify them, and so on and so on.
If you want a new shiny game and are easaly bothered by this stuff described this game is not for you. This game is a game with amazing driving (for the cars at the time) and an awsome story line. It is spot on by creating the right atmosphere and you will feel like beeing a character playing in a movie in that time period. The music, the narration, the adds on the radio and billboards, the magazines, artwork, conversations, subjects in conversations, the music all spot on. Where in areas the details have been left out as in AI behavior and scripting and some things just lacking or wrong (did they run out of budget or something?) in some areas there is unlimited depth.
The gameplay however is a mismatch between Mafia 2 and I would say leaning more to the Saints Row series. The missions is a lot of the same stuff as done in Saints Row. That does bother me but hey its Mafia 3 and I dont care, for me it does not matter how bad or good it is, I enjoy this game. Hopefully dlc's and updates will make it better later
I am not regretting my purchase, you may though, so think twice or even four times before you buy, be realy sure you are okay with all its quircks, fails and bugs, and that trough whatever it is now you can enjoy and in your mind fill in the gaps that have not been filled (yet maybe)