It's not a bad thing if you have more files than the instructor does-- everyone's map is a little different, so it's natural if you have more or less files. If you have separate object groups for some of your objects (or image files if you've re-textured anything), you may want to include those files in the download, as well, but it all depends on what you've used for your map.
I shall lock this up at your request. Good luck to you!