I'm sorry but this thread belongs in the Game Help section of the forum, just so you know for the future. c:
Either way, you need to get all of the files that have been exported (such as ones that end in .fhm, .fho. fhs. fhw etc), place them all in a compressed zip folder and then upload that to a file sharing website such as mediafire for your friends to download.
I'm sure someone else on the forum could probably give you a more detailed explanation as maps aren't really my area of expertise. I hope you resolve this though! ^^