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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.


Did you know…what are the essential (must-know) functions?
Did you see this picture before? If not, I guess it is time to take some Excel basics :=) Excel formula tab Here are my top functions...

MirVel
Mar 24, 20253 min read


Maximizing Your Power BI Desktop File: Exploring Lesser-Known Setup Options
How often do you update your Power BI app? Regular monitoring is crucial to staying current with features that enhance data visualization and reporting. Updates usually include performance improvements, bug fixes, and new features that streamline workflows and provide better insights. Do you visit the Power BI blog for the latest updates? It offers valuable information on new releases, tips, and best practices to maximize the platform's utility. Staying informed ensures you l

MirVel
Mar 16, 20253 min read


Power Query: Convert Date Format (Universal Format)
PRACTICE MATERIAL BELOW!👇 Function: Converts different date formats into YYYY-MM-DD or any other format that you define. You define it in code, it executes! Date column with mixed date formats Usage: = ConvertToISODate("03/13/2025") → Returns: "2025-03-13" let ConvertToISODate = (inputDate as any) as nullable text => let ConvertedDate = try Date.ToText(Date.From(inputDate), "yyyy-MM-dd") otherwise null in ConvertedDate in Conv

MirVel
Mar 16, 20251 min read


Power Query: Extract Numbers from a Text String
PRACTICE MATERIAL BELOW!👇 Function: Extracts only the numeric values from a given text. Simply add custom function in Power Query and define your column. Add a new Query from Sources Usage: = ExtractNumbers("Order ID: 123ABC456") → Returns: "123456" Power Query code for use and reuse: let ExtractNumbers = (inputText as nullable text) as nullable text => let NumbersOnly = if inputText = null then null else Text.Select(inputText, {"0"..

MirVel
Mar 13, 20251 min read


Power Query: Remove Special Characters from Text
PRACTICE MATERIAL BELOW!👇 Function: This function, RemoveSpecialChars, cleans a text string by removing special characters, retaining only letters and numbers. Add fx to the blank query (Advanced Editor) Usage Example: Using = RemoveSpecialChars("H3ll0! W@rld#") will return "H3ll0 Wrld". The function removes specified special characters from the input text, ensuring a clean output. Power Query code for use and reuse: RemoveSpecialChars = (inputText as text) as text => l

MirVel
Mar 13, 20251 min read


Is Artificial Intelligence Diminishing Students' Critical Thinking Skills and Knowledge?
Artificial intelligence (AI) is reshaping education in remarkable ways. Students now have access to a wealth of information and resources, often at their fingertips. However, as AI becomes more integrated into learning, a pressing question arises: Does this technology diminish students' critical thinking skills and overall knowledge? To address this concern, we must explore how AI's presence in educational settings influences the development of essential analytical skills. Th

MirVel
Mar 4, 20254 min read
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