I would like a vi for spreadsheets. It should run in the terminal, and be able to read/save csv/xls/xlsx/ods files. It should understand formulas. I should let me navigate with vi-style keys, and have a separate mode for editing a cell's contents (with escape to go back to navigation mode). It should perform well even for very large documents (many rows or many columns, but especially many rows). I propose that it be called `vc`. :-)