▥ columncraftOFFLINE TOOL · NO FILE UPLOADS · NO SUBSCRIPTION

Supplier catalog cleanup

Select your CSV, review the result, and download the converted file. Processing happens entirely on this device.

Choose CSV

CSV input · UTF-8 · 5 MB / 10,000 rows maximum

Ready. Select a file or try the sample.

View your agreed transformation rules

The output always uses comma-separated CSV with CRLF line endings. Identifiers remain text in the file; spreadsheet apps may still infer numbers when opening it. Import identifier columns as text. This tool does not update your store. Review the output and test a small import first.

Formula handling: values starting with =, +, -, or @ (including after whitespace) stop conversion for review.