As you have mentioned that you are not able to edit the file in Word format, could you please confirm if it is an issue with some particular file that you export or with all.
Can you share that file with us, so we can check it on our end?
Please refer the steps provided here: How to share a document
Also try to export PDF online here: https://cloud.acrobat.com/exportpdf and check if you get the same result.
We will be waiting for your response.