I barely used it, but I found this interesting because I was once a “word processor” (human, not program) back in the mid-80s to early 90s.
"One of the most interesting stories in the history of computing surrounds the dominant word processor of the late 1970's and early 1980's — Wordstar.
The brains behind it included industry pioneer Seymour Rubenstein, who much later developed a spreadsheet product called Surpass which became Quattro Pro."
To download your own copy, go to Vetusware.com