I can appreciate your frustration. I ran in to the same problem when I purchased the module. There is very little documentation and no one really responds to questions about the modules.
I will help best I can with what I figured out. I think it stores these things as a random file with a BIN extension to prevent hackers or someone from uploading a file and then coming back and executing it or something.
What you can do is the following.
You should have a field for UploadFileURL that you save to during the setup of the Upload module on your web page.
So what I did was take my website "http://127
.0.0.1" & UploadFileURL
and created a calculation field, ViewURL.
Now I can make ViewURL a link to OPEN URL or just copy the contents into a Web Browser and it will go to your website find the path and the GET.PHP will take the encrypted name and convert it to the real filename and display in your browser.
Or manually you could look at the UploadFileURL and see the encrypted name and the real name and rename the BIN files once you copy them out of your Upload directory.
I know that is a lot of gibberish, but maybe it will get you started.