BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
UID:wspolne-czytanie.zacheta
DTSTAMP:20260701T071719Z
DTSTART:20260701T071719Z
SUMMARY:Wspólne czytanie
END:VEVENT
END:VCALENDAR