Transfer endnote bibliography to mendeley WITH attachments

When I use the normal way to transfer bibliography from Endnote to memdeley using the XLM format, I lost the attachments. In the xml file, I see that attachments are indicated as (for example)
internal-pdf://1726956417/R Data Analysis Examples_ Ordinal Logis.webarchive
But Mendeley does not include them.
Have you found a solution to export biblio + attachements ?