Add Columns to Custom Post Type with ACF Fields

columns-cpt-acf.php

<?php //remove opening php tag

// add column(s) to admin cpt ui
add_filter ( 'manage_cptname_posts_columns', 'wd_add_acf_columns' );
function wd_add_acf_columns ( $columns ) {
     return array_merge ( $columns, array (
          'additional_column_1' => __ ( 'Column 1 Label' ),
		  'additional_column_2' => __ ( 'Column 2 Label' ),
     ));
}

// add data to column(s)
add_action ( 'manage_cptname_posts_custom_column', 'wd_cptname_custom_column', 10, 2 );
function wd_cptname_custom_column ( $column, $post_id ) {
     switch ( $column ) {
          case 'additional_column_1':
               $acf_value_1 = get_field( 'acf_value_1' );
               echo $acf_value_1;
          break;
          case 'additional_column_2':
               $acf_value_2 = get_field( 'acf_value_2' );
               echo $acf_value_2;
          break;
     }
}