How to get workarea name of a file in STAGING?

System

TS 6.1 Win2K

Is there any way of getting original workarea name for a file residing in STAGING area?
Is it stored as an extended attribute (although I could not find any such attribute) or at some other place?

I need it to write a script to get a list of expiring files from STAGING and display the original path (with workarea) in the generated report.
I'm doing this on STAGING because I thought it will be easier to look at one place instead of having to look at all the workareas. Also, I want to generate the report only for the submitted files.