Hi @Libby McCord !
You can export Deal Notes from Tools and Apps > Export Data, but unfortunately there's no way to filter them using any other criteria than date of creation of the note. What you can do with the spreadsheet you download from there is order them by Deal name and Note date, so that the most recent notes show up top.
I will forward your feedback to our team internally, thank you for your contribution!
There are a lot of threads asking for this. When will this feature be added?