If you no longer want Data Highlighter to extract data for your pages, or if your site has changed significantly and you need to redo the tagging, delete the page set. Once you delete a page set, you cannot recover it.
Delete a page set:
- On the Webmaster Tools home page, click the site.
- On the Dashboard, click Search Appearance.
- Click Data Highlighter.
- Click the name of a page set.
- Click the trash can icon.