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BirthdayChecker 2.2.1 Description: Scan for birthdays in text files. BirthdayChecker is a small, ultrafast program that scans a text file for birthdays that will be noteworthy in the next few days. If you put an alias in the startup folder, your Mac will check the birthdays every day for you. Configure warnings to display any number of days beforehand. Choose from German (DD.MM) and American (MM.DD) date formats. The header displayed in the birthday window and the width of the window is adjustable, too, as is the maximum number of starts per day.