Data Extraction

I have a list of people who have signed up on my site... First Name, Last Name, Email, and Phone number that needs to be extracted and put neatly in a .CSV ... Normally, I'd be able to do this but the application that I'm using broke and cannot easily extract the info.. so the only way to retrieve it is to go into PHPmyAdmin, locate the database and do it that way. I need this done now please. Thanks everyone.