I have a dynamic calendar which changes the background colour of the weekends on its own. Now I need a formular to highlight certain days of the week, depending on what I choose in a separat list of all weekdays. My goal is a calendar where I only have to enter the year and month (Igot that already) and choose on which days of the week I have to work (e.g. everey Monday) and the calendar highlights the chosen days of the month. If possible please answer in German, my Excel is set to German.