Modify the number of words on the event excerpt

tec-excerpt-length.php

<?php
//* Do NOT include the opening php tag
  
/**
 * Modify the number of words on the event excerpt
 *
 */
add_filter( 'excerpt_length', 'tec_custom_excerpt_length' );
function tec_custom_excerpt_length( $words ) {
  
  $words = 10; // change this value to set the number of words
  
  return $words;
}