well this is really not nprinting question - isn't it?
if you use import users from file then protecting the file structure is the key which is outside the nprinting scope. You need to ask yourself who and how will be able to access import files.
cheers Lech, When applicable please mark the correct/appropriate replies as "solution" (you can mark up to 3 "solutions". Please LIKE threads if the provided solution is helpful to the problem.
