By shri-915
function createCalendarEvents()
{
var sheet = SpreadsheetApp.openById('1A3Rs7WIQ61K207_7r2n3tAF175-h4ju9Um1m9qm3Mt8').getSheetByName('Calendar-Events');
//example - sheet id starts from /d/ to /edit in
//https://docs.google.com/spreadsheets/d/1A3Rs7WIQ61K207_7r2n3tAF175-h4ju9Um1m9qm3Mt8/edit?gid=1669476589#gid=1669476589
//and
//sheet name is 'Calendar-Events'
var data = sheet.getDataRange().getValues();
var calendar = CalendarApp.getDefaultCalendar();
//run loop, i=1 such that the loop starts reading from row 2 assuming row 1 contains header
for (var i = 1; i < data.length; i++) {
var title = data[i][0];
var eventStartDate = new Date(data[i][1]);
var eventEndDate = new Date(data[i][2]);
var description = data[i][2];
calendar.createEvent(title, eventStartDate, eventEndDate, {description: description});
}
}```