Replace legacy formulas with MAP, BYROW, BYCOL, SCAN, and REDUCE to build secure, scalable, and automated spreadsheets.

Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.

Much of the data that you use Excel to analyze comes in a list form. You might need to sort the data, filter it, sum it, and perhaps even chart it. Excel tables provide superior tools for working with ...

Those of us over a certain age will remember using paper lookup tables for logarithms or trigonometry functions. Those who are younger will have been exposed to lookup tables in their programming ...

Build flexible Excel functions that automatically handle blanks, defaults, and overrides without messy nested IFs.

In Microsoft Excel, VLOOKUP (vertical lookup) is a search function that you can use to find any data inside a particular column of the table by looking at the first column's entries and returning a ...

Excel table formulas shift from cell positions to named columns with #All-style tags, keeping calculations readable when layouts change.