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KNOWLEDGE HUB
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.


Building a Power BI Earthquake Monitor (Europe) — From API to KPIs
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

MirVel
Sep 15, 20254 min read


The Best Power Query UI Features You’re Probably Not Using
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. I repeat, no M-code, just UI!!! "Discover the Top 10 Power Query UI Gems: From automatic data type detec

MirVel
Sep 12, 20255 min read


The Ultimate Reusable Functions and Advanced Options Toolkit for Excel
Excel has been around for decades, but it’s still one of the most powerful tools for analytics, reporting, and automation. While most...

MirVel
Sep 12, 20253 min read


Excel Template: Financial & Business Analytics tool
Managing business performance doesn’t always require complex BI tools. With the right Excel setup, you can track sales, purchases, costs, and margins in a clean, interactive way. This Financial & Business Analytics template is designed for small to medium businesses who want a ready-to-use reporting system. In this post, I’ll walk you through the workbook page by page, explain how calculations work, and show how to interpret the dashboards. At the end, you’ll find a practical

MirVel
Sep 11, 20253 min read


Excel Template: CRM Dashboard for Small Businesses
This tool is designed to help you manage customers, employees, services, and sales, all in one place, with automated dashboards and KPIs. Below is the data flow of the dashboard and a short explanation of the pages. (link for download is below) Data flow diagram illustrating an Excel CRM template, showcasing interactions between the Customer Database, Employee Database, KPI Plan, and Order Form, all converging into the All Orders module, which then feeds into Processing/Setti

MirVel
Sep 7, 20253 min read


Top 5 Reusable M Code Functions for Power BI/Excel (Power Query)
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. PRACTICE MATERIAL BELOW!👇 Explore the Top 5 essential M-Code fu

MirVel
Aug 31, 20254 min read
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