Write-protected content cannot be changed

I received a Word document (corporate form) that has no apparent tables, forms, or sections. So the other suggestions on this topic have proved unfruitful.

While it’s possible to Copy & Paste the whole document into a new blank one, that loses much of the formatting. If I continue down that path, people will ask why my form looks different from everyone else’s.

Can you provide the document? Is it a .doc or a .docx file?