Mariner Calc is the ultimate number cruncher. Mariner Calc is a powerful, yet streamlined spreadsheet for the Mac OS X designed for the analysis, simulation and forecasting of numerical data.
Mariner Calc is a 32-bit application and won't run on any MacOS after 10.14 Mojave. I like it and have used it for years, but it's a dead end, and no other application will read the files.
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