Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.

When you choose where to live, open a store, allocate a public budget or design a marketing campaign, population data by ZIP code is often the missing piece that makes your decision truly data‑driven.

Inserting and customizing the timeline chart . It's now time to insert a line chart, which you'll adapt into a timeline chart ...