drupal/core/themes/classy/templates/content-edit/file-widget-multiple.html.twig

{#
/**
 * @file
 * Theme override to display a multi file form widget.
 *
 * Available variables:
 * - table: Table of previously uploaded files.
 * - element: The form element for uploading another file.
 *
 * @see template_preprocess_file_widget_multiple()
 */
#}
{{ table }}
{{ element }}