[p_duden]

Can anyone tell me how to insert a calendar into an Excel worksheet?

[Ladybugg]

I'm not sure if you just want a picture of the calendar, say a week or month view, or if you want a link to your calendar. Here is what I suggest:

Picture:
If you want a picture, open your calendar and make sure the content you want is visible. Create a screen shot by pressing Ctrl+Alt+Delete. This puts a picture of your screen on the clipboard. Open Excel and paste the picture. You can resize as necessary.

Link:
If you need a direct link to your calendar, I found this web site that may assist you in doing so: Embedding An Outlook Calendar Event in an Office Document

I hope this helps!