Spec Doctor

Spec Doctor is an independent experimental browser-based tool for Walmart Marketplace item files. Compare a completed .xlsx workbook with a fresh Seller Center template before submission, or decode an Activity Feed error report in .xlsx or .csv format. Files stay in the browser; the tool does not connect to your Walmart account or send files to Walmart.

Free preflight includes template health, issue counts, and the first three full findings. Activity Feed report decoding, CSV export, and printable reports are free. Paid audit credits unlock full cell-level findings, supported selected repairs, report exports, and up to seven days of project rescans. Report decoding does not repair a workbook. Spec Doctor is not affiliated with Walmart, and a clean scan does not guarantee acceptance.