Sometimes you may download a file that has been compressed, and you need a password to unlock or decompress the file. Only the user who uploaded the file knows the password, so we are unable to help in that situation.
Similarly you may need to know the password to get to a particular file or folder page. We do not control or distribute these passwords, and unfortunately we are unable to assist.
The best solution is to try to reach out to the person who originally uploaded or shared the file, and ask them for the password.