Use `E` in scientific notation to represent powers of 10
Enter numbers like `1E3` for 1000
Enter numbers like `2.5E-4` for 0.00025
Use `E` in formulas when working with very large or very small values
Format cells as Scientific to display numbers using `E`
Use `E` only in numeric entries, not as a text character
Type `=10^3` if you want the same result without scientific notation
Use `E` in Excel functions when referencing exponential values in calculations