Welcome to Chandoo.org - We make you awesome in Excel & Power BI

Welcome to Chandoo.org 😃🙏

Hello, Namaste & Kia Ora. Welcome to Chandoo.org. 

My name is Chandoo. My mission is to make you awesome in Excel and Power BI.
I do this by sharing Excel & Power BI tutorials, examples, tips, videos and articles on this website. I live in Wellington, New Zealand with my beautiful wife Jo & our twins Nishanth & Nakshatra. Take a minute to browse various topics of the site to see how I can help you.

Thank you and welcome.

howto get random sample in power query
Power Query

How to get a random sample of data with Power Query

Today’s Power Monday trick is about Power Query. This is based on my experience of working with large volumes of data.

Today I have been building a hotel dashboard (more on this later). As part of the dashboard, I wanted to show a random sample of user reviews. Reviews database had quite a few rows, so I wanted to extract a randomized sample of 100 reviews and show them in the report. When you refresh the report (Data > Refresh), then a new set of reviews will be fetched and shown.

Let’s learn how to generate a random sample with Power Query in this article.

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hand-drawn charts in Excel - how to
Charts and Graphs

Make funky and creative hand-drawn chart in Excel – Quick tutorial

Charts are great way to tell story about what is going on in your business. But they also feel a bit too impersonal and meh. How about adding your personality to them? I don’t mean making them tall, dark and pretty. I mean using hand-drawing style to make them pop out. Something like above example of hand-drawn chart.

The best thing is, You don’t need to actually draw these charts by hand. We can use a powerful charting trick to get these charts automatically generated (and linked) to your data. Interested? Read on to learn how to create hand-drawn charts in Excel.

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top 5 with a twist - calculating above average sales
Power Pivot

Top 5 with above average – Power Pivot Trick

Welcome to Power Mondays. Every Monday, learn all about Power BI, Power Query & Power Pivot in full length examples, videos or tips. In this installment, learn how to get top 5 list with a twist.

Let’s say you are analyzing sales data and you want to know who are your top 5 sales persons?

Of course, this is simple, you just create a pivot to see total sales by person and then sort the pivot. First five rows have the answer you need. You can even apply a value filter > top 5 to show only their data.

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Excel Dashboard Training Course
Learn Excel

Announcing Excel School v2.0 – Quick intro and details inside

Do you want to learn Advanced Excel, data analysis, creative charting, dashboard reporting and be productive in Excel? Then you are going to love my Excel School v2.0.

This is the golden age of data. Any rewarding job or entrepreneurship requires good data literacy. We are all expected to understand the relevance of data, how to manage it, how to analyze it, visualize it and tell elegant stories.

This is where Excel School comes in.

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Learn Excel

12 Steps to learn Excel and become awesome @ work in 2018

Obviously, everywhere you look this week, you find advice on how to do better this year.

Well, you don’t have to wait for a new year to become awesome at your work, any day is new year for the rest of your life.

So, today I want to share 12 steps to learn Excel and becoming awesome. But first I have a secret to confess…,

I think becoming awesome in Excel useless.

What we really want is, to become awesome in our work. Since we spend a lot of time using Excel (and other office software), knowing how to use these better can have a huge impact on how we do our work.

In that spirit, lets look at 12 steps to learn Excel so you become awesome in your work.

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Power BI

Nest Egg Calculator using Power BI

Welcome to Power Mondays. Every Monday, learn all about Power BI, Power Query & Power Pivot in full length examples, videos or tips. In the first installment, let’s take a look at something we all can related to – Money. 

We all know that Power BI is good for creating awesome visual experiences. Today let me share another fun way to use Power BI – to build a calculator. Learn how to create nest egg calculator in this Power BI parameter example tutorial.

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Power BI

Excel & Power BI for you

If you are new to Excel or have never used it, use below links to come up to speed.

Conditional Formatting in Excel

Intro to Excel


Structural Refs

Essential Formulas

Pivot Tables Intro

Budget vs. Actual ChartHave been using Excel for a while? Check out these tutorials to learn more and become awesome.

Advanced Excel

Pivots from Multiple-Tables

Multi-column Lookups

Interactive charts

VBA & Macros

Work with Excel a lot and know your game well? We have some very-advanced topics for you too. Check out:

Training calendar & dashboard in Excel

Array formulas

Excel challenges

Advanced Charting

Data Tables & Simulations

Power BI

Power BI is the most exciting thing to happen for your data since spreadsheets. If you are looking for a new skill to learn this year, I highly recommend Power BI. Check out below tutorials and get started today.

Introduction to Power BI – your first tutorial

Introduction to Power Query

Power BI Example – Commonwealth games tracker

Power Mondays – Learn all about Power BI, Power Query & Power Pivot

What people say about Chandoo.org

I have been using Excel since Excel 4 days, but understood the true potential of Excel only after learning at Chandoo's site a few months ago. His contents, language, topics covered and methodologies are unmatchable. His website has been a great inspiration. This guy is amazing. Great regards to Chandoo.
Vivek K
Long time Excel user
Hi Chandoo, I just want to say I really appreciate your Excel tutorials and all your hard work that it took to compile the huge library of content. Your site has helped me gain a better understanding of Excel which has helped me in my job. You are helping the world!
Felix H
Throughout my life as an administrative assistant; your site has been invaluable to me. And now that I’m a recruiter; it’s still an amazing resource for when I need to teach someone something quickly. You are a friggin’ Rock Star!!! Thank you for everything you do.
Jason S

Courses for you


Excel School

Learn how to work with data, make calculations, pivots, create amazing charts and powerful dashboards from scratch using Excel School + Dashboards program. Suitable for analysts, managers or professionals who need to use Excel often.


VBA Classes

Use VBA to automate your tasks and build powerful spreadsheet based apps. In this course, learn all about how to program with VBA, how to use the language and object model to your advantage. Suitable for people who build a lot of things with Excel.


Power BI

Power BI, the newest technology from Microsoft is a game changer. You can build rich, interactive and informative displays for your audience using Power BI. In this course, learn all about Power BI, Power Query and Power Pivot and how to combine them to achieve awesome results.

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