Discovery university DLC unavailable on mac

Good afternoon everyone. Basically, my friend gifted me a discovery university dlc pack on steam. However, I have a macbook so installing the game along with the dlc pack is unavailable. I tried going installing it via the EA app by managing add ons but it said only available on windows. I don’t have any computers with windows on it so I can’t install it through windows. I already accepted the gift and I’m wondering if I could request for my dlc pack to be transferred from steam to the EA app. I don’t want a refund or anything for this pack. I would greatly appreciate if someone could help me. Thank you!