I forgot the program, but older, probably many older, programs used to allow editing Rich Text formatted files in both a visual mode and also in a behind the sc

I forgot the program, but older, probably many older, programs used to allow editing Rich Text formatted files in both a visual mode and also in a behind the scenes mode. The format codes could be both edited and copied. However that requires a smarter program to display the data the intended way. CSV files, and their cousin of sorts TSV files, can often be sufficiently read both raw as well as on line printers.