This file is maintained here as a test of reading the legacy XDR format. Because
of changes to the value of comparison operator (it now returns Bool rather than
int), some of the formulas would need slight tweaking for the sheet to operate
as formerly described below in brackets.

[This is a sheet which contains the well known game of life devised by
John Conway.  Load it and clock the sheet with control-s/Shift-TAB a few
times, and you will see the glider moving.  Layer 0 contains the grid and
layer 1 contains some help formulas.]