First make sure Hidden text is displayed, so you can see the index entry
fields. In the Edit > Replace dialog, put this in the Find What box:
^d XE
(Note the space between the d and the X.) Leave the Replace With box empty
and click the Replace All button.
The ^d code represents the field delimiter, and the XE is the keyword that
appears in all index entry fields. That combination finds all XE fields,
regardless of what else is in them, and replaces them with nothing.
