Parameter

filespec[,...] or filespec[+...]

   Specifies one or more intermediate binary files (.BRN) that
   contain information (chapter titles, header levels, sections,
   and so on) for making a table of contents. To create a .BRN file,
   use the RUNOFF command with the /INTERMEDIATE qualifier. See
   the RUNOFF command for more information on the /INTERMEDIATE
   qualifier.

   If you omit the input file type, the DSR Table of Contents
   utility uses a default file type of .BRN. The RUNOFF/CONTENTS
   command also processes BTC files that the previous version of DSR
   produced.

   For single input files, the DSR Table of Contents utility
   produces an output file with the same file name as the input
   file. The output file type is .RNT.

   If you separate multiple input files with commas (,),  separate
   .RNT files for each input file are created. If you separate
   multiple input files with plus signs (+),  a single .RNT file
   that contains table of contents information for all of the input
   files is created. The default output file name is the same as the
   first input file name; the default file type is .RNT. Wildcard
   characters are not allowed in the file specification.