remove duplicate entries - by: itsme

hi, request was clear, remove the responses which have the same email address! ok here is what I did, exported the data as Excel, identifed thsoe using countif function in Excel, colored them, sort, then used control F in the responses screen to select the duplicates and remove them from the survey...

by the way, i can't sort in the responses screen, don't know why but i can't see any function to sort right in limeSurvey