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CalcStar is a spreadsheet from MicroPro, somewhat like VisiCalc but using commands similar to WordStar. You can also format content similar to WordStar. It was available for CP/M and DOS, and often part of early 80s system's bundled software.
WordMaster is a low-cost but powerful text editor for CP/M-80. This product pre-dated WordStar, but was only designed as a text editor, not a full blown word processor.