Ovid (via Kyle Sluder):Remember how Lotus 1-2-3 considered 1900 a leap year and how that was faithfully copied to Excel? Because it adds an extra day to 1900, many date calculation functions relying on this can easily be off by a day. That means that 39082 might be January 1st, 2011 (on Macs), or it … Continue reading Fighting a 30-year-old Software Bug