Thanks to Farb, we discovered, that the:
The Atari Word Processor Training Data Diskette CX8120
in the AtariWiki:
isn't an original disk! AtariWiki is deeply sorry for this, because our intention is the real deal, of course.
Luckily, the disk isn't protected, so creating an atr of the disk, shouldn't be the problem.
Is someone out there in the galaxy, who owns that disk and hasn't written to it?
Or at least can acknowledge that this directory:
Thank you so much for your help to preserve the ultra rare CX-boxes.
We really appreciate your help.