You can't do it with CF, and it is a particularly unpleasant addition to a
worksheet IMO (and illegal in some places), but if you must

http://www.cpearson.com/excel/BlinkingText.htm

--

HTH

Bob Phillips

(replace xxxx in the email address with gmail if mailing direct)

"Michael" wrote in message
...
Would anyone be able to tell me how to get a conditional format so that
the
cell colour or text flashes - if it is possible please?
I can use conditional formatting to make the cell colour change if the
date
in the cell is less than today but ideally I would like the cell to flash
when the criteria is met?
Thank you in advance