SPOOL DOCUMENT (3.51)    FILE (1)

This file holds the name of spool documents created by the Kernel
spooler (%ZIS4) for all operating systems.  It does not hold the text
of the documents themselves.  That text is first spooled to spool
space, then moved into the ^XMB global as a mail message.  This file
does, however, provide the mechanism for securing spool space for and
during spooling.  It is cross-referenced by name, spool number, user,
and mail message.