Spreadsheet Page Blog
Everyone else is celebrating this momentous occasion, so I will too.
In Excel, today's date (July 6, 2009) has a serial number of 40,000. According to Excel, the world began on January 1, 1900, and that date is designated Day 1.
Personally, I'm really looking forward to September 5, 2021 (also known as Day 44,444).