Thanks for the reply. Unfortunately your suggestion isn't an option for me. It's not predictable, how many line breaks the cell content will contain, as it is user generated content. The user can enter 2 or 20 lines or even more.
Isn't it possible to solve this somehow? You only need to consider the "\n" in the content and make a line break out of it in the docx.
I'm sure I'm not the only user facing this problem.