Identify the column by entering SizeQuantity1 in the New Column Name field. From the Operation dropdown, choose Sum. This will generate an error, but we’ll modify the formula directly to correct it.

Learn Excel 365 calculated columns to enhance your data analysis skills with dynamic formulas, cross-table calculations for real-time insight ...

Adding a new column to an entire spreadsheet Sometimes you want to add a new column that extends from the top to the bottom of your spreadsheet. This can be done in a couple of easy steps. Step 1 ...

2. Select the column to the right of where you want a new column. (Excel will insert the new column directly in front of it.) Select an entire column by clicking on its letter name at the top. 3.