Bulk deletion of entities
          You can use the import/export module to delete multiple entities simultaneously. 
         
         You can delete entities that share the same top-level entity type node. For example, if the top level entity type Type A has a child entity of Type B, and Type B has a child entity of Type C, you can use the same Excel file to delete entities that are assigned to the Type A, Type B, and Type C entity types. When you import the Excel spreadsheet, you must select Type A in the import dialog.
          To delete entities, complete these steps: 
          
        - Create an Excel file that lists the entities to delete.
 - Import the Excel file.