Use the instructions in this section to delete formats. You cannot delete a format if the repository contains content files in that format.
To delete a format:
Navigate to Administration > Formats to access the Formats list page.
Locate the format to delete and then select File > Delete.
If there are content objects associated with the format, the format is not deleted.
If there are no content objects associated with the format, the format is deleted
The Format list page is displayed.