>>>If I have a date in column A: 09/21/2005
>>>
>>>I need to get the following text string in column B: "09/20 & 09/21"
>>>
>>>The day and the prior day from the date in column A.
>>>
>>>Easy in Foxpro. Can't figure it out in Excel...
>>
>>Jay,
>>Try this
>>

=TEXT(MONTH(A1);0) & "/" & TEXT(DAY(A1)-1;0) & " & " & TEXT(MONTH(A1);0) & "/" & TEXT(DAY(A1);0)

>
>It's telling me that I have an error in the formula. Did you test it using a date in column A?

In addition,
See in Control panel=>Regional and language Options=>Tab 'Regional Options'=>Custimize=>List separator symbol.
by me is ';' that is why i use ';'