When opening a document, you may see an alert message asking if you want to use the word list in the document or an exception word list in the user dictionary. An exception word list includes words that were added to the User Dictionary while the document was worked on. If you know which exception word list you use, click its button. If you’re not sure, click either button, choose Edit > Spelling > Dictionary to inspect the word lists, and then, if necessary, choose Edit > Preferences > Dictionary (Windows) or InDesign > Preferences > Dictionary (Mac OS) to reset the word list used for composition.