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I have 3 fields in excel as follows:

Cell A1=2012 A2=12 A3=15 which contains year, month & date value respectively. And I want to make a date string out of it.

I know it's very easy to achieve using Date() function. But I also want the cell to remain blank if any of A1,A2 or A3 is blank.

Anybody has a formula/logic for this?

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Answer is =IF(COUNT(A1:A3)=3,DATE(A1,A2,A3),"") – Tejas Sep 16 '12 at 12:44
You should post your answer in the answers area. That way, you can mark your question as answered, and gain some rep. – dangowans Sep 16 '12 at 13:53

Another option in Excel 2007 or later would be to use this formula


Not only would that show a blank if any of the 3 cells is blank but would also show a blank if you had an invalid date like 2012-2-30. Your version would show that as 1st March

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