If you've done reinstalling but the problem persisted,... well maybe try opening it sith OpenOffice (free) to try to at least see if the file is open-able.
Sorry if the help is lacking here. The nature of your question in a ROG forum is peculiar enough. And I don't think anybody is willing to download a copy of your .docx document out of security concern.
no siggy, saw stuff that made me sad.