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Re:You Suck at Excel with Joel Spolsky (2015) [video] by catern on Wednesday September 07, 2016 @08:11PM (#12449151)
It looks like LibreOffice Calc does actually support R1C1 notation.

There is also the spreadsheet support in Emacs org-mode.

Re:You Suck at Excel with Joel Spolsky (2015) [video] by flukus on Wednesday September 07, 2016 @09:46PM (#12449595)
+1 for org mode. There is also a table mode plugin for vim that's great (on smallish tables).