1{2 "version": 2,3 "widths": {"C": 16},4 "cells": {5 "A1": "Trip to Lisbon",6 "A2": "Day",7 "B2": "Cost",8 "C2": "Notes",9 "A3": "Fri",10 "B3": "120",11 "C3": "Train, book the early fare",12 "A4": "Sat",13 "B4": "45",14 "C4": "Tram 28 and the castle, before the crowds",15 "A5": "Sun",16 "B5": "60",17 "C5": "Fly home",18 "A6": "Total",19 "B6": "=SUM(B3:B5)"20 }21}