1. Create a "Name" column. It doesn't have to have this label, but this is the column that will identify each person you are calculating the birthday for. 2. Create a "Birthday" column. This column will contain each birthday as a separate line. You don't need to use this for birthdays specifically. You can use ... 3. Enter the birthdays using a common format. Make sure each birthday is entered using the same format. If you're in the US, use MM/DD/YYYY. If you're ...
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