I deal with security clearances and need help with a formula in excel that would help warn me when a security clearance becomes out of date. Security clearances are due every five years, however i would like to be notified 3 months prior to the expiration date that would show up in red. For example, i have a clearance that was granted on 2005 04 20, five years from that date would be 2010 04 20. Any help would be greatly appreciated. Thanks for your time!
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