No.

Flashing/blinking cells are the spawn of the devil and may be illegal
for some under US Federal Accessibility Guidelines, Rehabilitation Act
Section 508, Subpart B, paragraph 1124.21(k)





In article
,
K wrote:

Hi, I already have VBA code that how to Blink or Flash cell colour or
a text colour but i was curious that is there way in Microsoft Office
may be in new version that to Blink or Flash cell colour or a text
colour by putting some sort of formula or anything in conditional
formatting. Can anybody please have any answer about this. it will
be great if we can blink or falsh text or cell colour by conditional
formatting.