Comparing Data

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sointly Posts 2 Registration date Sunday May 26, 2013 Status Member Last seen May 27, 2013 - May 26, 2013 at 10:38 AM
I need to compare data in one column to that in multiple other columns to find missing data. Column "A" is static data, and can be entered into any cell in any row in columns "N" through "X". I would like the specific data cell in column "A" filled red to indicate it does not appear in any row of any column "N" through "X".