Which is NOT a way to edit a formula in a cell in Excel ?

Press F2

Select the cell and then click in the formula bar

Right-click the cell and select Edit.

Double-click the cell 

Double-click the cell

To determine which option is NOT a way to edit a formula in a cell in Excel, we can go through each of the given options and eliminate the one that does not apply.

1. Press F2: Pressing the F2 key activates the edit mode for the selected cell, allowing you to modify the formula directly. This is a valid way to edit a formula.

2. Select the cell and then click in the formula bar: You can click in the formula bar at the top of the Excel window after selecting a cell to edit the formula. This is another valid method.

3. Right-click the cell and select Edit: Right-clicking a cell in Excel allows you to access a context menu with various options, but "Edit" is not one of them. Therefore, this option is not a valid way to edit a formula in a cell in Excel.

4. Double-click the cell: Double-clicking a cell in Excel allows you to directly edit the contents of the cell, including a formula. This is a valid method as well.

Based on the above analysis, the option that is NOT a way to edit a formula in a cell in Excel is:

- Right-click the cell and select Edit.

The correct answer is "Double-click the cell."