Connect4Techs Tech is a free learning site for people who want to get better at the tools they use every day — spreadsheets, data, finance, business and code.
We publish practical, step-by-step articles and downloadable PDF guides on Microsoft Excel, data analysis, financial modeling, MBA essentials, marketing, Kotlin programming and the latest consumer technology. Every guide is written to be useful the same day you read it: real formulas, real examples and clear explanations without jargon.
Practical first
Hands-on tutorials and cheat sheets you can apply immediately at work or in your studies.
Always free
All articles and PDF guides are free to read and download. Ads help us keep it that way.
Kept up to date
We revisit popular guides when software and best practices change.
Who is behind the site
Connect4Techs Tech is part of the Connect4Techs network of learning sites, alongside it.connect4techs.com for IT certification resources. Our team works in IT, data and business roles and writes about what we use in our own jobs.
Our editorial standards
- We test formulas, shortcuts and steps before publishing them.
- We clearly credit the original authors and publishers of any third-party material.
- We correct mistakes quickly — if you spot one, tell us.
- Advertising never decides what we write about.
Get in touch
Have a topic you want us to cover, or feedback on a guide? Visit the Contact page or follow us on Facebook.