Use this code example to remove params View params from an export to CSV link. You may have a param with confidential information that you've added to a View shortcode, for example. To protect the param from being added to an export to CSV link for that View, you can use this code example to remove it.

add_filter( 'frm_export_view_query_args', 'frm_filter_out_confidential_args', 10, 2 );

function frm_filter_out_confidential_args( $query_args, $view_id ) {
	if ( $view_id !== 82 ) {
		return $query_args;
	}

	$params_to_remove = array( 'secret', 'private_id' );

	foreach ( $params_to_remove as $param ) {
		unset( $query_args[ $param ] );
	}

	return $query_args;
}

• Change 82 to the id of your View.
• Change 'secret', 'private_id' to a comma-separated list of the names of the params you don't want to be added to the export to CSV link.