This article discusses the issue:

http://support.microsoft.com/default...b;en-us;215783

I guess the 'workaround' is not to apply conditional formatting to more than
2050 rows.

--
Jim
"crazy22" wrote in message
...
Could someone explain the following error, why it appeared, and how I can
prevent this from happening again?

"Excel could not save all the data and formatting you recently added to
'filename'.xls"