Hi,
when I try to export data in SPSS format, i obtain an error in export_helper.php row 131: the variable $survey is not defined.
if I add
$survey = Survey::model()->findByPk($iSurveyID);
then the error moves to row 171:
echo quoteSPSS(date('d-m-Y H:i:s', mktime($hour, $minute, $second, $month, $day, $year)), $q, field);
I had to modify in
echo quoteSPSS(date('d-m-Y H:i:s', mktime($hour, $minute, $second, $month, $day, $year)), $q, $field);

and then works!