<?php
return [
['=B4+C4', 'of:=[.B4]+[.C4]'],
['=SUM(B1:B4)', 'of:=SUM([.B1:.B4])'],
['=CONCAT("Result of formula expression =[.B4]+[.C4] is: ", B4+C4)', 'of:=CONCAT("Result of formula expression =[.B4]+[.C4] is: ", [.B4]+[.C4])'],
];