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Technically anyone with the specific (unique to you) link to the files will be able to access the files for as long as you do not delete them.
This means that if you share the links to them to anyone, they can simply access them without any password or similar being asked from them, but as soon as you delete the same, no one will be able to access them nor restore them.
We can find the links of your files by going through each submission one by one, but I will mention more about this on your other thread here: http://www.jotform.com/answers/644336