Two questions:

1. "Get text string on basis of date":
In cell A1 I have a date with format "dd/mm/yyyy" (for example
"27/10/2004"). Now I want to get in cell B1 a text string telling me the week
that date falls into (for example "Monday 25th - Sunday 31st October").

What function do I have to use in cell B2 to get this text string?

2. "Get text string on basis of weeknumber":
In cell A1 I have the number of a week (WEEKNUM(A1;2)). How can I get in B1
a text string telling me the week that date falls into (for example "Monday
25th - Sunday 31st October") using the value of the weeknumber in A1?

TIA

Martin