If you are creating a new page with Yahoo! PageWizards and you click the "Cancel" button before you have saved the file, all your work will be lost. If you are editing an existing file and you click the "Cancel" button before you have saved the file, all your edits will be lost.
If you have made some edits to an existing file using Yahoo! PageWizards but do not want to make them permanent, you may click the "Cancel" button at any time before saving a file.