Simple terms.

Updated November 12, 2026.

Using CommaMend

CommaMend is a free utility for reviewing and repairing CSV files locally in your browser. Use it only with files and remote sources you are authorized to access.

Review your changes

CSV structure cannot always reveal the intended meaning of data. Review repair suggestions and downloaded files before using them in business systems. Keep the original file as a backup. Warnings may describe legitimate values.

Spreadsheet formulas

Data downloads preserve formula-like text. Spreadsheet applications may execute values beginning with characters such as =, +, -, or @. Import untrusted columns as text. Error report fields use an apostrophe prefix to reduce this risk.

Availability and responsibility

The tool is supplied as available, without a guarantee that every error can be detected or repaired. To the extent allowed by applicable law, the operator is not responsible for loss resulting from use of the tool. These terms do not limit rights that cannot legally be excluded.