There are number free file hosting web services with allows upload and download of files of various types. Here is RarHost that is specifically for RAR files upload and download.
You can host unlimited .rar files online and share with friends. 150mb size limit per .rar, split archives allowed with no upload limit. You can also view the contents of the archive before you download, ensuring it contains the files you want.
It also support password protection of .rar files. Free membership provide access to features like: ability to track of your uploads, delete uploaded files, check how many downloads your .rar has been downloaded. Checkout RAR host for hosting your rar archive files.
P.S. .rar is the file format for the program winrar, a file compression program which performs much better than a standard windows zip file. you can find more information about winrar and how to download it by visiting the official site at www.rarlab.com
I suggest you store your files on this site http://eatbytes.com in order to save on bandwidth costs. Files are hosted on a 1000Mbit unmetered port. You can put links to these files on your website so your users can easily download them. They have no download limitations, hosting costs are only covered by advertising revenue. No worry that you’ll need to buy a “premium” account.