#advanced

Master recursive LAMBDA functions in Excel to perform looping calculations, text replacements, and math sequences without VBA.

Go beyond Excel GROUPBY totals with LAMBDA recipes for distinct counts, multi-metric summaries, lists, and ratios.

Convert numbers to words in Excel without VBA using LAMBDA. Build a reusable NUMBERTOWORDS formula with currency.

Use LET in Google Sheets for named variables, faster formulas, and a fix for missing headers in array filters.

Generate custom arrays with Excel MAKEARRAY and LAMBDA. Build multiplication tables, random grids, and dummy data.

Simplify Excel formulas with the LET function. Define variables, reduce repetition, and boost speed with real examples.

Create custom Excel functions with LAMBDA — no VBA needed. Step-by-step guide with real examples and helper functions.

Use the Google Sheets AI function =AI() for text, summarization, sentiment, categorization via natural language.