After 90 min: Automated data summaries and insights from large datasets without writing formulas
Master Excel Formulas
After 90 min: An automated spreadsheet that calculates and analyzes data without manual work
What you need
The 90-Minute Plan
Understand that formulas start with =. Practice simple math: =SUM(A1:A5), =AVERAGE(B1:B10).
Build a spreadsheet with income and expenses. Use SUM to total each category.
Add a column that flags expenses over $100 using =IF(B2>100,"High","Low").
Create a lookup table and use VLOOKUP to find values. Practice with product names and prices.
Format your sheet nicely and share it. Next: explore pivot tables and charts.
Use named ranges to make formulas easier to read. Test edge cases.
Keep Going
You might also try
After 90 min: Automated data pipelines that extract, transform, and load data from multiple sources
After 90 min: A working Python program that solves a real problem
After 90 min: A live webpage about your interests visible in a browser