The template file is formatted as a CIAO parameter file
	    and must end in '.par'.  A stack of files may be
	    used. If "NONE", all
	    header keywords will be written to the output file.  If a
	    template file is given, only keywords which appear both in
	    the file header and the template file will be written to
	    the output file.
CONTENT,s,h,"EVT1",,,"NEWNAME"
TELESCOP,s,h,"CHANDRA",,,""
INSTRUME,s,h,"ACIS",,,""
DETNAM,s,h,"ACIS-7",,,""
GRATING,s,h,"NONE",,,""
OBJECT,s,h,"0235+164",,,""
	    The first three fields are required, but only the first
	    and last fields are used.  The first
            field contains the keyword name and the last field contains an
            optional new name for the keyword in the output file.  If the last
            field is "", the name of the keyword is the same
	    in the output file as in the input file.