About Me

Hello, I’m Tomasz Decker.

Who Am I?

I am a passionate Excel expert and the proud creator of one of the largest Excel tutorial sites in Poland, which has been serving the community for an incredible 15 years.

My Expertise

With a background in finance and an Engineering Degree from The University of Zielona Góra, I bring a unique blend of analytical skills and technical know-how to the world of Excel.


My journey began with a simple yet ambitious goal – to make Excel accessible and enjoyable for everyone. Over the years, OfficeTuts.net has evolved into a powerhouse of Excel knowledge, catering to beginners and advanced users alike.

Giving Back

In addition to tutorials, I am committed to giving back to the community. I’ve developed a free SEO plugin specifically tailored for Excel users. You can find it here.

Codeigo Index

I’ve also ventured into the world of data analysis and technology trends. The Codeigo Index is my brainchild—a platform that compiles earnings data from over 1 million job postings, providing insights into earnings across different technologies. Explore it here.