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Guides on Excel, SQL, Power BI, AI and running better operations.
Excel
XLOOKUP vs VLOOKUP: Which Should You Use in 2026?
A clear comparison of XLOOKUP and VLOOKUP with examples, limits and when each still makes sense.
Business AnalyticsHow to Choose the Right KPIs for Your Team
A simple 5-step process to pick KPIs that drive decisions instead of decorating dashboards.
Prompt EngineeringPrompt Engineering for Spreadsheets: 7 Patterns That Work
Seven reusable prompt patterns to get correct formulas, cleaner data and clearer analysis from AI assistants.