You can certainly realize surveys with Facile Forms (
http://www.facileforms.biz/), but I probably takes a experienced user to create a survey.
However, once is created it is pretty easy to handle it.
Another option might be PollXT (
http://extensions.joomla.org/component/option,com_mtree/task,viewlink/link_id,2183/Itemid,35/), but with this one, I'm not sure about the export to Excel.
If your customer doesn't mind paying $89, you can probably make him happy with SurveyForce (
http://www.elearningforce.biz/joomla-components/surveyforce.html)
Hope this helps you a little bit! If I run across another option, I'll post it here...
