-@item -O @var{format}
-@itemx --output-format=@var{format}
-Specifies the desired output format. @var{format} must be one of the
-extensions listed above, e.g. @code{-O csv} requests comma-separated
-value output.
+@item @option{-O format=@var{format}}
+Overrides the format inferred from the output file's extension. Use
+@option{--help} to list the available formats. @xref{Invoking PSPP},
+for details of the available output formats.
+
+@item @option{-O @var{option}=@var{value}}
+Sets an option for the output file format. @xref{Invoking PSPP}, for
+details of the available output options.