Apparently, it's up for debate that Exploiter Wizards actually qualify for the Extra Exploit feat, since the name of the ability isn't an exact substitute.
http://paizo.com/threads/rzs2renk&pa...ally-THAT-good
Also, the Exploiter Wizard is really buggy in Hero Lab, specifically if you choose School Understanding or Bloodline Development as an Exploit. It grants extra abilities that should not be active for the Exploiter Wizard.