Hi @William Thompson,
Did you have other Office application in the same PC?
Where did you save the file? In local desktop or a shared folder?
As you said the file is created with Open Office, I suggest you try to check if the content control is grouped. You can go to Developer- Group- Ungroup.
I suggest you go to File- Protect Document and check if the document is Marked as Final. You can unmark it.
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