Microsoft is changing a 40-year-old Excel rule by allowing a single cell to hold multiple values using new lists, arrays in cells, and nested arrays.

JavaScript’s arrays can hold heterogeneous types, change size on the fly, and readily insert or remove elements. Traditional methods like slice, splice, and push/pop do this by operating on the array ...

Filters are often confused with selectors, but they are quite different and serve the important purpose of discovering the things that a simple selector cannot. This is an extract from my book Just ...

With the FILTER function, adding or changing criteria instantly updates my results, while the original data stays intact.

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.