Deleting a file
To delete a file, log into your account and go to the Files Section.
Once you are inside the Files gallery, select the file or files you want to delete then click the Delete icon at the bottom of the page.
To select more than 1 file, you can click on Shift or Ctrl key on your keyboard while selecting files.
When the icon is clicked, Publisher will show a message prompt telling that the action can not be undone. Click OK if you would like to proceed or Cancel if you would like to abandon the step.
Please remember that deleting files, although not reversible, will not affect your live site.
To learn more about accessing your files, follow this link for more articles about Files.