How do I extract/view all help topic IDs in a book file?

Hi,

So, we have a document (1000+ pages long) with hundreds of help topic IDs that were auto generated when the document was first created. We now need to access certain sections of the documents and make updates, but the only point of reference given is the help topic ID.

Is there a way in which we can extract the help topic IDs along with the heading name, or at least view where each help topic ID is?

Best regards,

Anshuman