You could try conditional formatting

An example ...
Assume A2 contains a real date: 5-May-2008
Assume dates which are = 6 months and < 12 months old
are to be formatted in brown fill (1 month is assumed = 30 days)

Select A2, click Format Conditional formatting,
then apply it in Condition 1 using Formula Is:
=AND(A2<"",TODAY()-$A$2=180,TODAY()-$A$2<360)
Format Brown fill OK out

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Max
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"Aims" wrote:
Is there a way in excel that i can put a date in a cell and have it
automatically highlight to show its expiring at a certain time period,
whether it be 1 or 2 years later?