=ISNUMBER(A1+0)*(LEN(A1)=8) [ if you're entering the number as text ]
You can use this formula, if so desired, in data validation that you can setup in cell A1. This message was edited by Aladin Akyurek on 2002-02-18 22:56
We have a great community of people providing Excel help here, but the hosting costs are enormous. You can help keep this site running by allowing ads on MrExcel.com.
Allow Ads at MrExcel
Which adblocker are you using?
Disable AdBlock
Follow these easy steps to disable AdBlock
1)Click on the icon in the browser’s toolbar. 2)Click on the icon in the browser’s toolbar. 2)Click on the "Pause on this site" option.
Go back
Disable AdBlock Plus
Follow these easy steps to disable AdBlock Plus
1)Click on the icon in the browser’s toolbar. 2)Click on the toggle to disable it for "mrexcel.com".
Go back
Disable uBlock Origin
Follow these easy steps to disable uBlock Origin
1)Click on the icon in the browser’s toolbar. 2)Click on the "Power" button. 3)Click on the "Refresh" button.
Go back
Disable uBlock
Follow these easy steps to disable uBlock
1)Click on the icon in the browser’s toolbar. 2)Click on the "Power" button. 3)Click on the "Refresh" button.