For example (easier to code than explain):
Code:
Sub Demo()
' Sourced from: https://www.msofficeforums.com/mail-merge/52094-cross-references-lost-after-mail-merge.html
Application.ScreenUpdating = False
Dim i As Long
With ActiveDocument
.Fields.Update
.MailMerge.MainDocumentType = wdNotAMergeDocument
For i = .Fields.Count To 1 Step -1
With .Fields(i)
Select Case .Type
Case wdFieldMergeField, wdFieldMergeBarcode, wdFieldMergeRec, wdFieldMergeSeq: .Unlink
End Select
End With
Next i
End With
Application.ScreenUpdating = True
With Application.Dialogs(wdDialogFileSaveAs)
.Format = wdFormatXMLDocument
.Show
End With
End Sub
Note: You'll need to save the mailmerge main document in the .docm format after adding the macro.
For PC macro installation & usage instructions, see:
Installing Macros
For Mac macro installation & usage instructions, see:
Word:mac - Install a Macro