@Nick-B Thanks for your reactions.
As I explained in the other support request topic Importing website with .DAF archive in WP LOcal I was not able to do a manual import.
Firstly I could not import the database file using the command line instructions.
Using “Database - Open AdminerEvo - Import” I succeeded in the import of the database. Howeever, thereafter I cound not replace the domainname with the given command line instructions.:
I can not follow the suggestion to use WP Migrate as it is an old back-up, of a website which can not be back-upped anymore.
As Duplicator is used frequently more people have this problem (as can be seen in the number of topics about this problem).
So, the request. is appropiate.