SheetSure
Auditable CSV cleanup that runs entirely in your browser. Every change is listed before it is applied; anything ambiguous is flagged, never guessed.
Choose a CSV file or drop it here
Your file is processed locally in this tab. It is never uploaded, logged or sent anywhere. No account, no tracking. Downloads prefix formula-like cells (= + - @) with ' so spreadsheet apps treat them as text; the values you see here are the raw originals.
Proposed changes
Untick anything you do not want. Nothing else is altered. Your original file is never modified.
Reconciliation
Flagged for your review
These were not changed. They appear in the audit report and, where the row stays in the output, are listed there too.