If you intend to provide someone with a file from your File Depository for download, set your file and all folders above it (including the topmost folder in your File Depository) to have read access so that the person can read the file. By default, the File Depository and the folders you create have read access rights for "anyone on the Internet", so you can just email the person an unauthenticated internal link to the file, for example. Anyone who knows the link can download the file. They cannot view the structure of the File Depository (folder system), only the files they know the link to.
You can create a web page in your File Depository (like a web server) from which links will lead back to the File Depository. Note, however, that files in the File Depository are limited by an expiration date (30 days). You can create your own web space without file expiration in
The Information system Files My Web
and instructions to get the site up and running can be found in The Information system Help My Web