I have a created an Excel XML list that imports data from multiple Infopath
XML files(using the built in DATA-XML-Import functionality in Excel)to
provide me summary information. Is there a way to bring in the filename into
the list during the import?

I am importing summary information from over 100 XML files and it would be
very helpful to be able to correlate each row of data in the Excel XML list
back to the source document by its path and filename.