Can a spool file be sent as an attachment in the decision step?

Hi,

I have z program that runs in background and produces a spool file. Normally, I can use tcode SP01 to display this file. At the end of this z program, I call SWW_WI_START_SIMPLE to send a workflow into SAP inbox. I want to know if I somhow can send the spool file along also? I read about attachment and SOFM object but still can't figure out what I need to do yet. Please help.

Thank you,

TH