
Understand the Σ Symbol: What Does Σ Mean in Excel?
Learn what the Σ symbol means in Excel and how to use the auto-sum function for quick calculations.

How to Use the COUNTIFS Formula in Excel Effectively
Learn to write the COUNTIFS formula in Excel to count cells with multiple criteria easily.

How to Calculate Average in Excel: Formula Explained
Learn the simple formula for calculating average in Excel using =AVERAGE(range) in this quick tutorial.