[pdftex] Link to attached file?

[Victor Ivrii]

With the attachfile package one can attach different files, including pdf
files. With hyperref (especially combined with xr-hyper)  package one
can make links to the specific anchors in the external pdf files.

Is it possible to make a link to the specific anchor in the attached pdf file?
It is possible with Adobe Acrobat but I am interested in the LaTeX solution

Thank you in advance

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Victor Ivrii, Department of Mathematics, University of Toronto