Data Cleaning Exercises

Dataset pack

Orders with bulk quantities

Orders including very large quantities and some invalid ones.

Fictional data · UTF-8 CSV, every value quoted so padding and leading zeros survive; empty fields are missing values · free for personal and classroom practice · practise it in Flag bulk orders without removing them.

orders 14 rows × 3 columns

Download orders.csv (Pro)

Data dictionary

id
Unique order ID.
customer
Customer name.
qty
Quantity as text; expected a whole number of at least 1.

Values are shown in quotes so leading and trailing spaces are visible. ∅ means the cell is missing. Exercises are also graded on hidden datasets that are never published.