A cleaner file. Every change visible.
Start with a sample or your own export. Set the checks, review the exceptions, and download your results.
Local to this browser tab
Your file stays here; the tool makes no upload or AI request. Text values and ambiguous rows are preserved. Export before leaving. Spreadsheet apps can still infer identifier types on import.
Leading and trailing whitespace will be trimmed. Blank rows, SKU letter case, missing values and conflicting duplicates remain inspectable. Formula-like cells are neutralized in exports.