Question Discussion & Solution

An array formula is a formula that can perform multiple calculations on one or more of the items in an array. We can think of an array as a row of values, a column of values, or a combination of rows and columns of values. Array formulas can return either multiple results or a single result. For example, we can create an array formula in a range of cells and use the array formula to calculate a column or row of subtotals. We can also place an array formula in a single cell and calculate a single amount. An array formula that includes multiple cells is called a multi-cell formula, and an array formula in a single cell is called a single-cell formula.

Comments can be added to cells using Review > Comment.

Concatenate and manipulate text

The Format Painter copies formatting from one place and applies it to another.
The Format Painter button on the standard toolbar in Excel 2003 and earlier version.
Home tab, in the Clipboard group, click Format Painter in 2007 and higher version.