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  • You wish for it, We solve it

  • Creating Complex Spreadsheets

  • Fixing & Improving Existing Files

  • Analysing Intricate Data

  • Automate Time consuming tasks


I perform a range of tasks from simple to difficult, for small and large jobs, working on Microsoft Excel/ Google Sheets and using a wide variety of tools: Pivot tables, Macros, all sorts of lookups and other formulas.

I can help you automate all sorts of reports, manipulate and analyse data, fix and improve existing spreadsheets in a very cost-effective and flexible way.

Complex Spreadsheets
Existing Files
Intricate Data
Time consuming tasks

Does this sound familiar?

  • Do you have raw data to analyse and are unsure of how to extract useful information?

  • Are you currently working with slow, inefficient spreadsheet that could be improved?

  • Do you want to automate slow, time consuming Excel tasks?

  • Are you spending hours or days manually doing a repetitive job and are looking at saving time and energy?




Years of Experience


Projects completed


Satisfied Clients

My name is Hélène Somdecoste.

I have always loved bringing numbers to life and make them “speak” by transforming meaningless data into accurate reporting. What can I say, I am a numbers person!

It recently came to our minds that what we are passionate about, many people find it being a painful, time consuming exercise… So, the Excel Fairy idea was born!

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How it started…

I started working with Excel during my first job, when I was still studying for my Masters degree. At that time, I knew very little about the most popular spreadsheet software and had to learn Pivot tables, VLOOKUPs and later on Macros as I was being asked to perform more and more in depth tasks.

After I graduated from my Masters degree in France I flew all the way to New-Zealand to join my partner, who at this time was still studying at AUT University. I have been working in New Zealand for 3 years now, and have been lucky enough to always work in an environment when I could develop my Excel skills.

With his help, I am now ready to share some of that knowledge and hopefully make your lives better.

  • I knew I had backed a winner

    When you use  the service of a freelancer, you are placing your trust in someone you've never met - there is a fair amount of risk involved. But right from the outset with Helene's clear and timely communication I knew I had backed a winner. One of the best contractors I have worked with. Will definitely use again.

    Kevyn Townley
  • A pleasure to work with!

    Helene was a pleasure to work with! Her communication and follow up were amazing. I would highly recommend here.

    Derek Barnes
  • Definitely an Excel guru!

    Working with Helene was amazing, I was very impressed. Her work was on point against the brief that I provided her, I really appreciate all she has done for us. Definitely an Excel guru!

    Jason Mun
    Co Founder & Director
  • I recommend her for Excel / Google Spreadsheet skills!

    Helene is a great, cooperative freelancer. Great communication, quality, and adherence to milestones and deadlines. Highly recommended.

    Abdelrahman Abdou
  • 10/10

    10/10. Helene has been great to deal with and very professional. I'm very happy with the work she has produced and she's very knowledgeable with excel/google sheets. Id highly recommend her for any jobs and will definitely use her again if I need future work done. Thanks Helene!

    Simon Zust
    Mortgage Forecaster

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