That's about what you said the first time. What kind of limited access are you looking for? If you're looking to limit the number of times someone can edit a file, try Evan's link. If you're looking for some other type of protection, there are ways to do it, but I would need a lot more info to tell you exactly what to do. Do you want people to only be able to edit certain cells? Do you want to hide formulas? If you give a bit more insight on what you're looking for, I can try to help you out.