In a formula, how do you refer to a range of cells from A1 to A10?

In Excel, to refer to a range of cells from A1 to A10, you use the notation A1:A10. This notation specifies the start and end points of the range, using a colon to indicate that all the cells in between should be included. This method is standard syntax in Excel formulas and is essential for operations like calculations, data analysis, and functions that require a range of values.

The other formulations do not conform to Excel's syntax for referencing ranges. For instance, using "A1 to A10" lacks the necessary colon and would not be recognized as a valid range by Excel. The option "A1, A10" lists two specific cells separately and does not create a contiguous range, which would also not yield the desired results in functions that require an entire range. Lastly, "Range(A1, A10)" resembles a syntax used in programming, such as VBA (Visual Basic for Applications), but is not appropriate in regular Excel formulas. This makes A1:A10 the correct and universally accepted way to denote a range of cells in Excel.