BEGIN:VCALENDAR PRODID:-//github.com/rianjs/ical.net//NONSGML ical.net 4.0//EN VERSION:2.0 BEGIN:VEVENT DTEND:20261007T130000Z DTSTAMP:20260830T024655Z DTSTART:20261007T120000Z ORGANIZER: SEQUENCE:0 SUMMARY:DesignBuilder: Advanced Tools to Optimise Performance and Impact UID:CIBSE-EVENT-a1EQx000006mvJtMAI END:VEVENT END:VCALENDAR