Real situations from working spreadsheets — sales targets, commission tiers, messy exports, aged invoices. Numbered in recommended order: start at 1 and work down, or filter to what you need.
9 exercises — Beginner · for Data Analyst
Join a category prefix and an item number into a single SKU.
CONCAT
Work out what share of one funnel stage reached the next.
Express clicks as a percentage of the impressions that earned them.
Use LEN to validate that product codes are the right length.
LEN
Pull the first name out of a single full-name column.
LEFT · FIND
Read an error code as a diagnosis rather than a failure.
Locate a keyword inside a longer description without worrying about capitals.
SEARCH
Take the trailing two-letter state abbreviation off the end of a territory code.
RIGHT
Use the median to describe a set of orders that one huge deal has skewed.
MEDIAN
| # | Exercise | Functions | Difficulty | Time | Status |
|---|---|---|---|---|---|
| 2 | Build a product code with CONCATHarbor Supply — new catalogue load | CONCAT | Beginner | 4 min | 10 pts |
| 3 | Calculate a funnel conversion rateHarbor Supply — distributor sign-up funnel | — | Beginner | 5 min | 15 pts |
| 4 | Calculate click-through rateHarbor Supply — campaign performance export | — | Beginner | 4 min | 10 pts |
| 7 | Check code length with LENHarbor Supply — product code import | LEN | Beginner | 3 min | 10 pts |
| 12 | Split a full name with LEFT and FINDHarbor Supply — CRM contact export | LEFT · FIND | Beginner | 7 min | 15 pts |
| 16 | What is Excel telling you with #N/A?Conceptual question — no dataset | — | Beginner | 3 min | 15 pts |
| 24 | Find where a word starts with SEARCHHarbor Supply — supplier product descriptions | SEARCH | Beginner | 5 min | 15 pts |
| 25 | Pull a state code out of a territory with RIGHTHarbor Supply — CRM territory codes | RIGHT | Beginner | 4 min | 10 pts |
| 29 | Find the typical order size with MEDIANHarbor Supply — October orders, one outlier | MEDIAN | Beginner | 5 min | 15 pts |