The Merge Archived Spool File process, which is run as a JCL job or from the command line, creates a merged set of archive files made up of separate sets of spool archive files, from different locations. Creating merged spool files requires that you have an enterprise-related Micro Focus product; see Merging Archived Spool Files.
One of the files in this merged set is M_SPLJOB.DAT; open this file in the editor to view the spool job entries and their associated data sets.