correct password required to continue

[sgotovac]

The first page of my questionnaire requires participants to enter a unique pass code given to them prior to the experiment. I have the list of codes in an excel file. Can I create a password question that will check what they entered against the excel file? So that participants cannot continue if they did not correctly enter a code that is on the list?

[sgotovac]

Here is a sample of a way to do this (just substitute in your own passwords between the " ", and you can copy and paste as many lines as you need. Save this as an html not a .txt