You can write conditional formulas like =IF(today()<39107,A1+B1,"out of date").
You can also set up "things to happen" under macro control. But most, if
not all of these things can be overturned by someone with higher Excel skills
and the desire to do so.

Vaya con Dios,
Chuck, CABGx3



"Aleks" wrote:

Hi,

I need to setup my excell spreadsheet that is doing some calculations, in
such a way that after certain date ,(say 25/01/2007) the spread**** is going
to be rendered as disabled so that nobody (spreadseett wil be available
through LAN of my company) can input any more data till another spreadsheet
is available after data analysys.

Thank you