Tree diagrams use graphics to indicate the materials comprising a project or product and the relationships between those materials. A bill of materials, or BOM, performs the same function but with ...

For many years, I used the SUBTOTAL function in Microsoft Excel to create easily visible subtotals at the top of my worksheets. However, when I encountered AGGREGATE, this became my go-to function for ...

There are a few ways to count the number of items in an Excel list, depending on the data you have. In this tutorial, learn how to count items in Excel using the COUNTIF and SUBTOTAL functions. Image: ...