Hi,

You can highlight the cells with conditional formatting:

To conditionally format your cell(s):

In 2003:
1. Select the cells you want to format (Column A in your case)
2. Choose Format, Conditional Formatting
3. Choose Formula is from the first drop down
4. In the second box enter the formula:
=COUNTIF($B$1:$B$4000,A1)=0
5. Click the Format button
6. Choose a color on the Patterns tab (or any available option)
7. Click OK twice.

In 2007:
1. Highlight all the cells on the rows you want formatted
2. Choose Home, Conditional Formatting, New Rule
3. Choose Use a formula to determine which cell to format
4. In the Format values where this formula is true enter the following
formula:
=COUNTIF($B$1:$B$4000,A1)=0
5. Click the Format button and choose a format.
6. Click OK twice
--
If this helps, please click the Yes button.

Cheers,
Shane Devenshire


"IBE" wrote:

I have a worksheet that I'm trying to find the data from Column A that's not
in Column B. i have almost 4000 records and it's a pain to go through each
row. help please.