Does Excel provide an easy means of bookmarking worksheets?

I have a several worksheets that I need to open at some point nearly every day. By default, Excel shows the four most recently accessed files when I click File >> Open.

But on days when I am opening and closing a lot of spreadsheets, yesterday’s work is soon off the Most Recent Four list. Is there some way to add permanent, clickable links or bookmarks? If so, how do you do it?