I've created an Excel spreadsheet with various data (a checklist of sorts). One column in the spreadsheet will have a date that a contract needs to be returned to our office. I would like to be able to have a message box alert us to the fact that a contract is not back within the specified time the column states. This return date column will be in several worksheets as well (each worksheet represents a month). I would especially like this box to appear as I'm opening Excel. I know I can put a simple formula in the cell that will do the trick, but I do not want to scroll down the column looking for this message as the column could be long and on several sheets. Am I asking too much from Excel? Unfortunately, I'm not familiar with VBA to be able to write a fomula - any help out there?