An entire RTF file is considered a group and must be enclosed in braces. The \rtfN control word must follow the opening brace. The numeric parameter N identifies the major version of the RTF Specification used. The RTF standard described in this Application Note, although titled as version 1.5, continues to correspond syntactically to RTF Specification version 1. Therefore, the numeric parameter N for the \rtf control word should still be emitted as 1.