sc-im - 0.8.4+ds-1+b1 main

Spreadsheet Calculator Improvised, aka sc-im, is an ncurses based,
vim-like spreadsheet calculator.
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sc-im is based on sc, whose original authors are James Gosling and
Mark Weiser, and mods were later added by Chuck Martin.
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Its keybindings are familiar to users of 'vi', and it has most
features that a pure spreadsheet would, but lacks things like
graphing and saving in foreign formats. It's very stable and quite
easy to use once you've put a little effort into learning it.