Excel Data Cleanup
Clean and reshape messy sales data for a reliable handoff.
Learn a job skill
by doing the work.
Original mini-courses. Real practice files. Clear feedback. Free, without an account.
Start a mini-courseFind paid orders over $100
SELECT order_id, amount FROM orders WHERE status = 'paid' AND amount > 100;
| order_id | status | amount |
|---|---|---|
| 1 | paid | 120 |
| 2 | pending | 140 |
| 3 | paid | 100 |
| 4 | paid | 180 |
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4 lessons · 9 tasksStart course
Excel Sales Reporting
Build a checked sales report with lookups and conditional totals.
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Check AI-assisted work against evidence and a clear output contract.
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Try a course’s skills before you enroll
Practice selected data-preparation goals through four original lessons, a checked order-file project and all the materials.
Explore the data-preparation trial →