A family of Microsoft word processing software products for creating web, email, and print documents.
Ciao,
I'm Ugo, a Microsoft Independent Advisor willing to help other Microsoft customers.
Regarding your question, as a first troubleshooting step, can you please try to select all the documenttext (Ctrl+A) and then set it to the correct language?
https://support.office.com/en-us/article/check-...
Please let me know if this helped somehow.
Ciao
Ugo