Learn when to use Power BI DirectQuery, how to improve report performance, and which modeling, DAX, source-design, and visual mistakes to avoid.

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.

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.

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 inco

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.

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.

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.

A ready-to-use Excel currency converter with a 90-day FX history, dropdown filters, KPI cards, and two interactive charts. Free download included with step-by-step setup instructions.

Go beyond sales reports — connect Power BI to your IT, HR, finance, and admin systems using custom connectors. A practical guide to unlocking organisation-wide analytics.

SharePoint can be either your best “single source of truth”… or the reason your refreshes fail on Monday morning. This guide shows how to structure SharePoint properly (sites, libraries, lists), set permissions that scale, and connect everything cleanly to Excel and Power BI—with practical “do this / don’t do that” patterns. Check out some of our FREE templates and materials. PRACTICE MATERIAL BELOW!👇 1) SharePoint basics that matter for BI people Sites, Libraries, Lists (t

If you’ve ever wanted cleaner dashboards, faster “at-a-glance” reading, and less “wall of numbers” fatigue—Unicode symbols + hex colors are a surprisingly powerful combo. In this post you’ll learn practical, copy-paste-ready tricks for Excel, Power BI (DAX + conditional formatting), and Power Query. Check out some of our FREE templates and materials. PRACTICE MATERIAL BELOW!👇 Why this matters (real-life use cases) Status columns that actually read well: ✅ OK, ⚠ Warning, ❌ Is

Check out some of our FREE templates and materials. PRACTICE MATERIAL BELOW!👇 Introduction Ever wondered what happens behind the scenes when you drag a visual into Power BI? That’s DAX queries at work. While most users write DAX formulas to calculate measures or columns, DAX queries go one level deeper — they let you directly query your model, test logic, and debug calculations.In this post, we’ll break down what DAX queries are, how they work, their structure, examples, pit

Check out some of our FREE templates and materials. Jtzt Abonnie Overview When you connect Power Query / Power BI to a SharePoint site (or document library), there are (at least) two common M-functions you may see or use: SharePoint.Files(siteUrl as text, optional options as record) as table SharePoint.Contents(siteUrl as text, optional options as record) as table Although they sound similar, their behavior, performance, metadata returned, and navigation experience differ. Un

Hook: If your model “mysteriously” changes numbers, breaks relationships, or sorts months alphabetically—blame data types. What we’ll cover: where to define types (and why), the safest order of operations across the ETL chain, Power Query vs. Model vs. Table View, special cases (DirectQuery, currency, duration), and concrete, copy-paste examples. 1) Why data types matter (and where they live) Power Query (PQ): Data shaping stage. Types here affect folding, transformations

Hook: Hard-coded paths are silent project killers. Move a file, share a workbook, or publish a PBIX—and boom: refresh fails. Goal: In ~10 minutes you’ll set up robust, parameter-driven paths for Excel (Power Query) and Power BI (Desktop & Service), plus a tiny, reusable M pattern you can paste into any project. Check out some of our FREE templates and materials. PRACTICE MATERIAL BELOW!👇 1) Why hard-coded paths fail When you embed "C:\Users\Alice\Project\data.csv" in a qu

Microsoft Power BI Desktop contains a rich set of modelling and reporting features, yet many power users enhance their workflow with external tools . These tools attach to the Analysis Services instance behind a PBIX/Power BI semantic model and allow advanced editing, scripting, performance analysis and automation. The External Tools ribbon lists all registered tools, and Microsoft warns that these are produced by independent developers; editing metadata outside Power BI De

Excel users often seek efficient ways to retrieve data from large spreadsheets. Two powerful functions that stand out in this pursuit are...

Goal: a fast, self-updating Power BI report that tracks earthquakes in the European–Mediterranean region (with a global table for comparison), highlights activity hotspots, and surfaces clean KPIs for decision-making. Scope: Earthquakes in the European-Mediterranean region with magnitude 4.5 or greater within the last 720 days or the last 2 years. Source: ETH Zürich - Swiss Seismological Service (HTML daily data): http://www.seismo.ethz.ch/en/earthquakes/europe/last90daysMa

Power Query is often seen as a tool for just loading and cleaning data — but it offers far more than the basics. Most users rely on a handful of transformations, while the UI hides powerful features that can make your workflow faster, cleaner, and easier to maintain. In this post, I’ll walk you through the best Power Query UI functions and hidden gems — no M code required. Check out some of our FREE templates and materials. I repeat, no M-code, just UI!!! "Discover the Top 1

Power BI’s Power Query (M language) allows creating custom functions and reusable query steps to simplify common tasks. Below are five versatile M-code solutions – a mix of data transformation helpers and analysis utilities – that you can copy into your Power BI queries with minimal adjustments. Each function includes the full M code, an explanation of its purpose, and an example use case in real-world projects. Check out some of our FREE templates and materials. PRACTICE MAT