function mymodule_importdata() {
    $csvs = array(
        'http://www.example.com/1.csv',
        'http://www.example.com/2.csv',
        'http://www.example.com/3.csv',
                ....
        'http://www.example.com/n.csv',
    );
    foreach ($csvs as $csv) {
        $feeds_source = feeds_source('my_feed_importer');
        $feeds_config = $feeds_source->getConfigFor($feeds_source->importer->fetcher);
        $feeds_config['source'] = $csv; //url of file | url of site


        $config = array(
            'process_in_background' => TRUE,
        );


        $feeds_source->setConfigFor($feeds_source->importer->fetcher, $feeds_config);
        $feeds_source->importer->addConfig($config);
        $feeds_source->save();


        $feeds_source->startImport();


        while (FEEDS_BATCH_COMPLETE != $feeds_source->import());
    }


  return t('Import successfull');
}