file_url = '' #PATH TO YOUR FILE
folder_name = 'the_folder_name'
name_of_file = 'whatever_u_want_to_call_the_file'
description_of_file = 'Description'
file_instance = File(open(file_url))
folder, created = Folder.objects.get_or_create(name=folder_name)
name = u'{}'.format(name_of_file)
filer_instance, filer_instance_created = FilerImage.objects.get_or_create(
name=name,
folder=folder,
description=description,
)
filer_instance.file = file_instance
filer_instance.save()
file_instance.close()