Duplicate blank file exported to EN from WorldCat

When I export a reference to my End Note program from WorldCat I always get a second file along with the reference I have chosen to export. It is blank except for the file type and the name of the database. It’s a minor inconvenience to delete this extra file, but I’d like to know if it’s possible to avoid this.

When I export from the WorldCat site in the “Choose an Import Filter” dialog box I choose “WorldCat (OCLC)”.