When you dive into the world of Excel, you quickly realize the power of its functions. Among these, the INDEX & MATCH formulas stand out as incredibly versatile tools for data lookup and retrieval.

Tables, named ranges, line breaks, modern functions, and helper columns make Excel formulas easier to read, audit, and fix.

Originally, Excel was not designed to be a real database. Its early database functions were limited in quantity and in quality. And because every record in an Excel database is visible on the screen ...

A seasonal index is a way of measuring the seasonal variation -- that is, to measure the change that is due to seasonal changes in demand -- of a variable, typically sales. For example, a beachfront ...