Open the file.
1. Click on Menue "Extras" (sorry, I know only the German names) then click "Optionen".
2. Click on the table "Ansicht"
3. In the second block (Formatierungszeichen) uncheck all checkboxes besides "Alle"
4. Then press the OK button...
It should work now, I hope ....
Wilhelm Polmann (tekom)
Many thanks, Wilhelm Polmann!
And the Link is good to know.
Meanwhile I have searched the archives and realized that similar questions have been asked many times. I was very nervous because I had to deliver and could not see how my translation actually looks like. But I sorted it out eventually. Next time I search before I ask, thank you all for your patience and help!