TechnologyExplain Like I'm 5Beginner
Everyday Excel, a free technology course on Tomo

Everyday Excel

Like Duolingo, but for Everyday Excel. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

For the part of you with thirty open tabs that never became anything.

A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through Making Numbers Work for You and Organizing, Filtering, and Summarizing. It starts from scratch.

12 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Eddie the Eagle, the guide who teaches the Everyday Excel course
Everyday Excel
with Eddie the Eagle
12
Levels
2
Sections
5
Min/day
What you'll learn

Key ideas in Everyday Excel

  • Typing letters or units inside a cell turns the whole entry into text
  • Excel cannot perform math on text entries
  • Put raw numbers in the data cells and label the unit in the column header instead
  • Excel treats any input without a leading '=' as literal plain text
  • An equals sign tells Excel to calculate the expression rather than just display the characters
  • Excel dynamically stretches range references when rows are inserted within the range boundaries
  • The formula updates automatically to =SUM(B2:B11) and includes the new value in the total
  • Manual addition formulas like =B2+B3+B4 do not include newly inserted rows
  • The small green square in the bottom-right corner of a selected cell is the fill handle
  • Double-clicking the fill handle sends the formula all the way down to the bottom of the neighboring list
  • Double-clicking a column boundary auto-expands the width
  • A string of '###' symbols means the column is simply too narrow to show the full number
  • Hashtags do not indicate a math error or broken formula
  • Widen the column by dragging its header border or double-clicking it to reveal the number
  • Excel changes row numbers automatically when copying formulas down a column
  • Relative references maintain their spatial relationship to nearby neighbor cells
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Everyday Excel the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Starting Clean With Numbers and Math

What happens if you ask Excel to add up boxes that have words or letters in them?

Get it right to open this lesson and 11 more in the app.

Course map

Where Everyday Excel takes you

Stop wrestling with unruly spreadsheets. Learn how to write reliable formulas, fix common calculation blunders, and turn raw lists into clean, actionable summaries.

  1. 1

    Making Numbers Work for You

    • Setting Up Clean Data and Instant Totals
    • Locking References and Fixing Broken Math
  2. 2

    Organizing, Filtering, and Summarizing

    • Structuring Tables and Highlighting Key Data
    • Summarizing Messy Lists with Pivot Tables

2 sections · 4 units · 12 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
Explain Like I'm 5

Everyday Excel is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

Start free

Start Everyday Excel today.

Download Tomo, search Everyday Excel, and play your first lesson in under a minute.