Change Excerpt Length
Source1:https://technumero.com/limit-excerpt-length-wordpress/
Source: https://www.julienklepatch.com/wordpress-excerpts-read-more-tags/
//Change Excerpt Length. Default is 55
function custom_excerpt_length($length) {
\!h return __100__; //Type the length of the excerpt here
}
add_filter('excerpt_length', 'custom_excerpt_length');