CSV data: cleaning messy columns
When to use
Use this skill for cleaning messy columns in CSV data. This skill specifically handles cleaning messy columns and nothing else in the CSV data family.
Procedure
Trim whitespace, fix encodings, normalize null tokens, coerce types, and standardize headers in a CSV.
Notes
This is the CSV data skill dedicated to cleaning messy columns. Sibling skills cover other CSV data capabilities; this one is the right choice only when the task is about cleaning messy columns.