How do I make the contents of a cell appear to flash?

[Guest]

I am trying to make the contents of a cell flash.

I did it several years ago, and certainly in a much early version of Excel
(it might have even been some other spreadsheet like Lotus 1-2-3).

 

[Bernard Liengme]

See: http://exceltips.vitalnews.com/Pages/T0214_Flashing_Cells.html
However, this can be very annoying to the user. I understand it is illegal
in some jurisdictions (trouble for those with epilepsy?)
best wishes

 

[JE McGimpsey]

I understand it is illegal in some jurisdictions (trouble for those
with epilepsy?)

US Government sites are prohibited by law from displaying flashing text
(between 2 and 55 Hz) due to triggering seizures in those with
photosensitive epilepsy.

http://www.section508.gov/IRSCourse/mod02/021401--.html

Many other organizations try to conform to section 508.

Many more understand that blinking text annoys the hell out of a
significant fraction of users and looks unprofessional at best (better
to use Conditional Formatting or some other means).