I´ve tried everything I know (include file, file_get_contents, "IncludeMe"-Plugin and others) to execute a shortcode within a textfile, but it didn´t work.

So here is the problem detailed and I hope somebody could help me: I´m taking different rows of post_content from a textfile this way:

$text = $_SERVER["DOCUMENT_ROOT"].'wptext/more_text.txt'; 
$texto = file($text); 

global $wp_query;
$postid = $wp_query->post->ID;
$pm_row = get_post_meta($postid, 'pm_row', true);

global $wp_query; 
echo $texto[$pm_row];

It works so far, but in some of those rows are different shortcodes embedded. They don´t work and were always shown as plain text instead, although they are all functionel - outside of this textfile.

What am I missing?

Any hints for this?