Free course

Spreadsheets That Do the Work: From Formulas to Decisions

Learn to build spreadsheets other people can trust: references that survive being copied, the functions you will use every day, lookups that do not break, and a budget-and-variance tracker you keep at the end.

BeginnerData & AnalyticsCertificate
7 modules 48 lessons 10 enrolled ~8h of material
Spreadsheets That Do the Work: From Formulas to Decisions

By the end

What you'll build

  • Write formulas that refer to cells instead of typed-in numbers, so a sheet corrects itself when the data changes
  • Predict what any formula returns by applying the order of operations, and use brackets to force the order you meant
  • Lock a reference with a dollar sign so a formula survives being copied down a column
  • Summarise a column with SUM, AVERAGE, COUNT, COUNTA, MIN and MAX, and say which one a given question needs
  • Round money correctly with ROUND, and explain the missing-paisa problem that rounding creates
  • Build a decision inside a cell with IF, AND and OR, and recognise when nested IFs have grown too deep to trust
  • Total and count only the rows that meet one or several conditions using SUMIF, COUNTIF, SUMIFS and COUNTIFS
  • Fetch a value from another table with a column lookup, then rewrite it as index-and-match to remove the fragility
  • Clean imported text with TRIM, LEFT, MID and FIND, and calculate with dates by treating them as numbers
  • Audit a sheet you did not write, find the broken range, and hand over a documented budget-and-variance tracker

The shape of it

How this course works

Short lessons

48 lessons across 7 modules, each small enough to finish in one sitting.

Practice as you go

Every lesson ends with a small space for what you noticed — the doing is the learning.

A certificate at the end

Finish the course and earn a certificate anyone can verify with a link.

Ready when you are.

Make an account and this course opens up — your progress is saved from the very first lesson.