Lab 2 — Output Validator

This tool checks the cleaned-dataset CSV your script produced in Lab 2, Part 2. Upload your lab_02_cleaned.csv and it looks for the mistakes a cleaning script most often makes — leftover header rows, page-break junk, an Amount column that is still text, stray characters in the user column — and gives you a short report.

It runs entirely in your browser. Your file is never uploaded anywhere. The report is shown as an image: read it, then go fix your script or your specification yourself. Handing the report to an AI to fix for you skips the part of the lab that is actually graded.

Drop your lab_02_cleaned.csv here

or

Your report

Related: pandas primer · encoding primer · back to the Lab 2 page

ACCTG 5150 — Week 2. The dataset and cleaning task adapt the Spring 2026 Lab 2, originally authored by Mac Gaulin.