Tables, named ranges, line breaks, modern functions, and helper columns make Excel formulas easier to read, audit, and fix.
The simplest way to start documenting Excel formulas like a coder is by using the N () function. Although its primary job is to convert non-numeric values into numbers, it has a hidden quirk: because ...
Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.