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Spreadsheets & Excel
The most underrated skill here, and the one most likely to get you promoted this year.
Why it's in demand
Named in an enormous share of non-engineering job posts
Realistic timeline
3–5 weeks to visibly better than your colleagues
Free resources
4 curated links
Spreadsheets are the world's most widely deployed programming environment, and most people use perhaps a tenth of what they can do.
Pivot tables, lookups and clean data structure will make you the person others bring their problems to — and they're the same concepts that make databases and BI tools click later.
What you'll be able to do
- Model, clean and summarise data without waiting for a tool
- Automate reporting that currently eats a day of your week
- Build the foundation for analytics, BI and no-code work