A family of Microsoft word processing software products for creating web, email, and print documents.
Perhaps I misunderstood the issue...
First, make sure that your macOS, Office software & print driver are fully updated. Once all of that is confirmed: In the Print dialog open the Copies & Pages list & select Layout. Clear the checkbox for Flip Horizontally.
That is the only control know of which would cause what you have described. If that doesn't correct it please provide additional descriptive information including:
- macOS Version
- Present Mac Office Version
- Whether only 1 specific document is affected
- A screen shot of the problem document