The lookup function in Excel can save you a lot of time and effort, but only if you actually know how to use its many forms and alterations.

How to Delete Functions in Excel. Excel uses the Visual Basic for Applications (VBA) language to generate functions used within the spreadsheet. Most developers use Excel functions to automate ...

Excel doesn't have a built-in AVERAGEIF() function, but you can still average values, conditionally.

Q. How do I use the FILTER function in Excel, and how is this an improvement over the filter feature? A. The FILTER function was introduced five years ago as part of the Excel Dynamic Arrays rollout.