Downloading attendee list with registration custom question details associated

Hi there, I held an event that required registration. I used several custom questions as part of that registration. I would now like to download a list of those who actually attended, that includes the data from the custom questions that they entered as part of their registration. I can't find a way to do this. The standard Participants report is only a list of names and email addresses, no option for including custom questions populated as part of their registration. Can you help?