The HELP files format is the following
1 TOPIC help for this topic 2 SUBTOPIC help for a subtopic of the previous topic 1 OTHER_TOPIC text for other_topic 1 ENDOFHELPwhere 1 and 2 are in the first column of the text file, and followed by a single space. This format is easy to modify as it is a simple text file, but much slower to access because it is sequential. The 1 ENDOFHELP (with no trailing characters) sequence indicates the end of the help file.
The help file name should be assigned to the logical name specified in the SIC_BEGIN call, or given explicitly.