A family of Microsoft word processing software products for creating web, email, and print documents.
Searching for XE only will find that particular text, so your former XE fields are now most likely cross-reference fields instead (as I suggested in my previous reply).
Assuming that you do not have any other REF fields in your document, you can use a macro such as the following:
Sub RemoveREFFields()
'Macro created by Stefan Blom, MVP, January 2018
Dim f As Field
Dim FieldCount As Long
Dim i As Long
FieldCount = ActiveDocument.Fields.Count
For i = FieldCount To 1 Step -1
Set f = ActiveDocument.Fields(i)
If f.Type = wdFieldRef Then
f.Delete
End If
Next i
End Sub