I delete it or fight the pop-ups for the password that seldom work. I have not yet got a password from 'Sorry we have to require a password do to cost or leaching. Just click this link and say yes or vote and you will see the password for a split second in the upper right corner'.
I have wanted to try the conversion method and see if it will open when I try converting to a different format an open it. No time though.
I would like to see somebody answer this one too.
JLN