You can freeze a row in Excel through the "Freeze Panes" menu. This lets you scroll through a spreadsheet without that frozen ...

You can add a column in Excel by right-clicking or using the “Insert” option. These features are helpful for adding new data to a spreadsheet.

The simplest way to think about SCAN is that it applies a custom calculation to each element in a range/array and returns every intermediate result it produces along the way. If that sounds abstract, ...