Question:
Regarding file names, what if it isn't able to be changed. As in, if it's an swf on the internets, and because you don't save those but link directly to them, you can't change the filename. What happens then?
nothing happens to the file, but the browser wont know how to display it. You can however save .swf files to your drive. You just need to learn the name of the file which can usually be seen when you choose "view source"