Your question is Automating Repetitive Test Data Work. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you saw a repetitive QA task—such as preparing test data files, reading inputs, or splitting datasets for multiple automated checks—and took ownership to script it yourself. How did you decide what to automate, how did you validate it, and what impact did it have?