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 your work. 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 once again.

How windy is Wellington? – Using Power Query to gather wind data from web

Let’s take a whirlwind trip to coolest little capital – Wellington. It is a windy place, so hold on to your hats and spreadsheets.

Almost everyone who spends more than 2 days in Wellington would agree that it is a windy place. But how windy is Welly? In this two part series, we will use Power Query, Excel charts and coffee to answer that question.

But, first let’s start with a joke.

What happens when you throw a boomerang in Frank Kitts Park?

You will have to buy another one, coz you are not getting that one back.

Read This »

This year, become a Very Table Genius

Let’s start the new year with a bang.

Excel Tables were introduced more than a decade ago, but a lot of people don’t know them or under utilize them. So start this year by becoming a very table genius.

What is Excel Table?

Excel tables are a simple and elegant way to structure and store your data. Let’s say you have staff details like below. Instead of calling it like A1:E72, you can convert this data in to a table and call it, you guessed it right, covfefe (or more coherent option like – staff).

Read This »

2018 Calendar, daily planner Excel templates [free downloads]

Here is a New year gift to all our readers – free 2018 Excel Calendar & daily planner Template.

This calendar has,

  • One page full calendar with notes, in 4 different color schemes
  • Daily event planner & tracker
  • 1 Mini calendar
  • Monthly calendar (prints to 12 pages)
  • Works for any year, just change year in Full tab.
Read This »

Merry Christmas and Happy New Year 2018 [Holiday Card]

Hellow there…

I wish you a merry Christmas & Happy New Year 2018. May your holidays be filled with joy, togetherness, celebrations and fulfillment. May your new year be filled with hope, energy and awesomeness.

I want to tell you how thankful I am for all your support in this year. Each time you click, visit, read, comment, share, view, listen, purchase, subscribe, follow, question, discuss or email, my heart is filled with gratitude and happiness. Thank you for all the love and support. 2017 has been another amazing year in Chandoo.org journey and I owe this to you.

Read This »

How much long service bonus to pay? [Homework]

‘Tis Friday and it is too hot in my home office to stand and type a longish post. So, let’s keep this skirtish (short and pretty).

How would you calculate long service bonus?

Let’s say you are HR manager at BigLargeInc. and you are looking at Julia’s service details. You have her employment start date, current date, her leave without pay details, as shown below.


You need to calculate how many days of continuous service Julia had (ie total service – duration on leave without pay). How would you write the formula?

Read This »

5 conditional formatting top tips – Excel basics

Time for another round of unconditional love. Today, let’s learn about conditional formatting top tips. It is one of the most useful and powerful features in Excel. With just a few clicks of conditional formatting you can add powerful insights to your data. Ready to learn the top tips? Read on.

Read This »

Filter all records for November or 11AM or 2017 [quick tip]

Imagine you are the first officer at ship terminal αε974F1 on remote planet Alderaan. Your job involves looking at terminal log to see anomalies in time space continuum. So one day after getting to work late, thanks to crazy traffic on the floating super way in your settlement, you are looking at latest terminal log for αε974F1 on Excel (of course Excel, what else are you going to use? Notepad?!?) and want to check all the records logged at 7 AM on any day. You don’t have all the time in universe to filter records one at a time. You don’t want to write a formula or something else as it is too early in the morning and the nearest Starbucks is 7 light years away. So what would you do?

Use filters of course.

Read This »

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.

=VLOOKUP(chandoo, on_social_media,TRUE)