Although your document looks like a normal Word document, it is not. It contains field codes which include most of the data from your EndNote library relating to each of the references which you have cited. This stored data is called the Traveling Library.

The field codes allow EndNote to format, unformat, and reformat citations within Word.

If you wish to submit your paper for publication, you must first remove all field codes, as they could interfere with the software used by the publisher.

Removing field codes means deleting Word's Cite While You Write field codes and saving the formatted citations and bibliography as text. This removes only Cite While You Write field codes, and not all other Word field codes.

To remove field codes and save the formatted citations and bibliography as text:
Open your formatted Word document.
Word 2003: From the Tools menu, go to the EndNote X5 submenu and select Remove Field Codes. From the File menu, select Save to save document.
Word 2007: On the EndNote tab, in the Bibliography group, select Convert Citations and Bibliography and then Convert to Plain Text.
You will see a warning message, explaining that this will preserve your original document (with EndNote field codes) and create a new, unsaved document (without EndNote field codes). Click on the OK button to continue.
Save the new document under a new name, and send that version of your paper to a publisher or share your final paper with a colleague using a different word processor (including a different version of Word).

Note: The copy does not contain Cite While You Write field codes, so you cannot reformat with Cite While You Write.

Keep the original document as it is the master copy that contains the field codes. It is this master copy that you will have to use if you wish to reformat or add or remove any references using EndNote.