It sounds like the person who created the form didn't do it correctly.
Unless you are applying for that person's job and want to demonstrate that
you know the proper way to create a form, I would just fill it in and let
the file's originator deal with the mess.
To add to Joann's suggestion, you could help the sender by making your
entries stand out by embolding your entries (or non-bold if the document is
in bold).