Power BI
Power BI DirectQuery: Usage, Performance and Best Practices
Learn when to use Power BI DirectQuery, how to improve report performance, and which modeling, DAX, source-design, and visual mistakes to avoid.
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Practical explanations for better data work.
Articles on Excel, Power BI, Power Query, dashboards, and automation—kept focused enough to use in your next project.
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Excel · Power Query
Build a Live European Weather Forecast in Excel (+ Power BI) with Open-Meteo (part 2)
Connect Excel to the Open-Meteo API and build a refreshable seven-day European weather forecast with reusable Power Query M code, governance controls, KPI cards, and charts.
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Build a Live European Weather Forecast in Excel with Open-Meteo (part 1)
Connect Excel to the Open-Meteo API and build a refreshable seven-day European weather forecast with reusable Power Query M code, governance controls, KPI cards, and charts.
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Excel
One Macro, One Full Excel Expenses Dashboard (with Claude AI)
Most expense reports start as a flat table — and stay that way. With a single VBA macro, you can turn that raw Data sheet into a polished, interactive dashboard, with no manual chart-building required. The macro does the heavy lifting. It formats your table, builds seven PivotTables, lays out six KPI cards (total spend, budget, approval rate and more), draws five charts, and wires up Month and Department slicers so everything filters together. A live status bar shows each step as it runs. All...
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Excel
7 Underrated Excel Functions You're Probably Not Using (But Should)
This guide covers 7 underrated Excel functions that most people overlook. Each one solves a real problem, saves time, and works right now in Excel 365. With practical examples and formulas you can copy, you will walk away with new tools to add to your daily workflow.
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Power BI · Power Query
Power BI Error Handling: Build Reusable Queries That Work on Any Table
Dirty data does not announce itself. It arrives quietly as blank cells, "N/A" placeholders, stray zeros, or entirely empty columns that looked fine in the source system. Left untreated, these inconsistencies silently corrupt your totals, break your relationships, and cause scheduled refreshes to fail at the worst possible moment. This guide shows you how to stop patching issues one column at a time and build a small library of reusable M functions that handle every table inconsistency...
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Power BI
Power BI General Options Explained: Parallel Loading, Memory Limits, and Refresh Settings That Actually Matter
Learn how Power BI's parallel loading, memory limits, and General Options affect your dataset refresh speed. Compare Pro vs Premium settings with practical tips.
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Power BI
Native Query in Power BI: How to Write SQL Directly Against Your Data Source
Learn how to use native queries in Power BI to write SQL directly against your data source. Step-by-step guide with M code, tips, and a practice file included.
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Power BI
Sharing Power BI Apps and Reports with External Users: Best Practices, Caveats, and Real-World Tips
A practical guide to securely sharing Power BI apps and reports with external users using Entra B2B, licensing checks, RLS, and core governance best practices.
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Power BI
How to Build a Proper Date Table in Power BI
A practical step-by-step guide to building a clean Power BI date table, writing better time-intelligence measures, and avoiding the most common calendar mistakes.
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Excel
How to Use AI in Excel: Copilot, ChatGPT, and Smart Automation for Faster Analysis
AI is now built into Excel — from Copilot to ChatGPT-powered formulas. This guide covers the five most practical AI tools you can use today, with real examples and step-by-step instructions.
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Excel
How to Build a Simple Environmental Pollutants Dashboard in Excel
Learn how to build a clean Excel dashboard using filters, KPI cards, AVERAGEIFS formulas, and charts — with a downloadable sample workbook based on European environmental pollutant data.
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