Hi Rick,
thanks a lot for your immediate responsse.
Here is what’s within wp-config.php
define(‘DB_CHARSET’, ‘utf8’);
/** The Database Collate type. Don’t change this if in doubt. */
define(‘DB_COLLATE’, ”);
I checked an example post with PHPMyAdmin. Here is a a copy & paste:
post_title: Brückentag in Herzegowina: Mostar
post_content:
Adi’s Hostel in Mostar: 43°20′47.22″N 17°48′42.01″E
Kloster Rama: 43°48′15.34″N 17°31′50.87″E
With the plugin this translates into exported HTML code:
<br><h1 class=”blog2html_h1″>Brückentag in Herzegowina: Mostar</h1><h2 class=”blog2html_h2″>5 Jun 2018</h2><p class=”blog2html_p”>Adi’s Hostel in Mostar: 43°20′47.22″N 17°48′42.01″E</p>
so something in the export must do the translation from pure text into into &**** for ??ü and so on.
As an example, when you look at the 43° , what happens is, that by any reason an additional character is added, here a  (the is no such character at all), ending up having now two charcters instead of one (  and °) and in most cases (” or ‘ ) its translated wrong in total.
Finally, even if I think this is only minor information: The HTML file itself is coded in UTF8 (checked it with Notepad++).
I hope I could deliver what you expect.
Best regards, Hans