acp-export-filename.php

<?php

/**
 * This hooks allows you to change the used filename for the export feature
 */

/**
 * Usage of the export filename hook
 *
 * @param string $file_name
 * @param AC\ListScreen $list_screen
 *
 * @return string
 */
function acp_export_filename_usage( $file_name, AC\ListScreen $list_screen ) {

	// Replace $file_name or use $list_screen to be used in the hook

	return $file_name;
}

add_filter( 'acp/export/file_name', 'acp_export_filename_usage', 10, 2 );

/**
 * Example of a custom filename structure for every list screen
 *
 * @param string $file_name
 * @param AC\ListScreen $list_screen
 *
 * @return string
 */
function acp_export_filename_custom_structure( $file_name, AC\ListScreen $list_screen ) {

	// Target a specific post type
	$post_type = 'my_custom_post_type';

	if ( $list_screen instanceof AC\ListScreenPost && $post_type === $list_screen->get_post_type() ) {

		// Replace the filename with a custom label
		// e.g. 'My Custom Label.csv'
		$file_name = 'My Custom Label';
	}

	return $file_name;
}

add_filter( 'acp/export/file_name', 'acp_export_filename_custom_structure', 10, 2 );

/**
 * Example of a custom filename structure for every list screen
 *
 * @param string $file_name
 * @param AC\ListScreen $list_screen
 *
 * @return string
 */
function acp_export_filename_user_structure( $file_name, AC\ListScreen $list_screen ) {

	// Replace the filename with your username
	// e.g. 'Oliver-Hardy-Cars.csv'
	$file_name = sprintf(
		'%s-%s-%s',
		wp_get_current_user()->first_name,
		wp_get_current_user()->last_name,
		$list_screen->get_label()
	);

	return $file_name;
}

add_filter( 'acp/export/file_name', 'acp_export_filename_user_structure', 10, 2 );

/**
 * Example of a custom filename structure for every list screen
 *
 * @param string $file_name
 * @param AC\ListScreen $list_screen
 *
 * @return string
 */
function acp_export_filename_date_structure( $file_name, AC\ListScreen $list_screen ) {

	// Replace the filename with a custom label and custom date including a timestamp
	// e.g. 'Pages on 2022 March 10th 17:16.csv'
	$file_name = sprintf(
		'%s on %s',
		$list_screen->get_label(), date_i18n( "Y F jS H:i" )
	);

	return $file_name;
}

add_filter( 'acp/export/file_name', 'acp_export_filename_date_structure', 10, 2 );