Welcome to Chandoo.org.
My mission is to make you AWESOME in your work.

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.


Merry Christmas & Happy New Year 2021

On behalf of my family, our staff, volunteers & well-wishers, Let me wish you a very happy Christmas & prosperous new year 2021. Here is a small holiday card from Chandoo.org HQ. The kids school had a cultural festival a month ago and we got this beautiful picture at a photo booth. So much better than timer controlled DSLR on dining table I must say.

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6 must know line charts for business data analysis
Charts and Graphs

6 Must Know Line Chart variations for Data Analysis

Line charts in Excel are essential for trend analysis, spotting distribution and outliers. Use these 6 variations to get more out your line chart.

  • Indexed Line Chart
  • Sparklines
  • Spaghetti Line Chart
  • Smoothed Line Chart
  • Forecast Line Chart
  • Line Chart Combinations
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two level data validation drop down excel
Excel Howtos

Two-level Data Validation [Excel Trick]

Ever wanted to create a two-level data validation list? You can use this simple trick to make two-level or cascading drop-down validation lists in Excel. You need some data, a pivot table and simple IF formulas to get this. Read on to understand the process and create your own two-level drop down lists in Excel.

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power query tutorial and examples
Power Query

Power Query Tutorial – What is it, How to use, Full examples, Tips & Tricks

Power Query (Get & Transform data in Excel) is a true game changer ?. It can simplify and automate various data activities. In this in-depth blog tutorial, learn all about this powerful time-saving technology. You will learn:

* What is Power Query and how to launch it from Excel or Power BI?
* How to connect and load data from any type of sources – excel files, CSVs, text files, web pages, PDF, folders etc.
* How to perform common data cleansing activities with Power Query
* Adding columns using rules
* Automating data collection, clean-up and publishing processes with Power Query
* Web scraping with Power Query
* SQL style Joins, merges, appends and unions with Power Query
* Consolidating data in a folder
* Data load, save & publish process
* Tips & tricks on using Power Query efficiently

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Power BI

Excel & Power BI for you

What people say about Chandoo.org

A relative told me about your website since I need help creating pivot tables, I learned how to do it in a matter of minutes thanks to your tutorial. Where have you been all of my excel troubled life, I look forward to viewing your videos on youtube as well as on your site. You are going to make me EXCELLENT at Excel!
Soulful Sista
Excel Sister
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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