[support] lost text format and posts

Hi, I disabled a text format in drupal 7, and seem to have lost all my articles. Is there a way to reenable this and get them back? Having gone through the disable one more time, I did read it a bit more carefully this time, and it does say: Disabled text formats are completely removed from the administrative interface, and any content stored with that format will not be displayed. This action cannot be undone I have a bad feeling about this, but surely a disable button implies, there's an enable button somewhere too? Thanks for any help. Ed.