M$ Excel Supreme Stupidity

Wanna good laugh?

Fire up Microcrap Excel.  Open a blank workbook and format
a cell as "Date."  (Accept the default display format.)

Now in that same cell enter "60."

What do you see?  Answer: “February 29, 1900” (or whatever
display format you have chosen).

The problem is that Feb 29, 1900 does not exist!

The year 1900 is not a leap year!

I'm seeing this right in front of me right now and I am using
the very latest version of Microcrap Excel.

OMFG!  What junk!

I thank John Walker for this:

https://www.fourmilab.ch/documents/calendar/



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Hail Linux!  Hail FOSS!  Hail Stallman!