Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.

If Excel vanished tomorrow, global finance would halt. It is the essential infrastructure powering the modern world.

Within each content area, there are one or more tutorials. Each tutorial consists of lessons. Each lesson should be a page detailing the concept being taught, along with sample code. Lesson and page ...

Abstract: In a paper by Willems et al., it was shown that persistently exciting data can be used to represent the input-output behavior of a linear system. Based on this fundamental result, we derive ...

If Excel is not recognizing functions after reboot, change calculation settings, disable Show Formula, run Excel ...