This command opens each file in the book and updates the xrefs based on the xref definitions in the specified xref group in the BookXRefs file. If the BookXRefs file contains only one xref group, you will not be prompted to select a group. (For information on xref groups, see the Generate BookXRefs File command.)
Any files that are open when this command is run, are updated with the new xref definitions, but are not saved or closed. All other files are opened, updated, saved then closed.
Note that only the xrefs defined in the BookXRefs file are added or modified, all other xrefs in your documents are left unchanged.
Actions taken while importing xrefs are included in a report. For more information on reports, see the Log Files topic.