BEGIN:VCALENDAR
                        VERSION:2.0
                        PRODID:-//hacksw/handcal//NONSGML v1.0//EN
                        BEGIN:VEVENT
                        UID:90b8510bf0c53db6cb20a1f905733a22https://www.olsd.org.uk
                        DTSTAMP:20260825T184840
                        DTSTART:TZID=20260825T184840
                        DTEND:TZID=20260825T184840
                        SUMMARY:
                        DESCRIPTION:
                        END:VEVENT
                        END:VCALENDAR