Use the Create from Selection command to create named ranges for the selected data table in cells B2:E6 using the labels in row 1 as the basis for the names.

Sure, here are the steps to create named ranges in Excel:

1. Open your Excel workbook and select the range of cells that you want to name, which is B2:E6 in this case.

2. Go to the "Formulas" tab in the Ribbon.

3. Click on "Create from Selection" in the "Defined Names" group.

4. In the "Create Names from Selection" dialog box, make sure that the "Top row" checkbox is selected. This will use the labels in row 1 as the basis for the names.

5. Click "OK".

Now, you have created named ranges for the selected data table using the labels in row 1 as the basis for the names. You can use these names instead of the cell references in your formulas.