WestHost does not typically allow file-sharing sites, because we're not in the business of hosting and serving files. It depends on the type of files you want to put here, and how much strain they'll put on the server.
Also, you may want to review our Policies regarding the type of content you are allowed to host on our servers. We do not allow any content that may violate copyright laws. In general shared hosting is for hosting smaller normal websites and not designed for more complicated types of internet use. All files on our server should be directly tied to your websites of yours.