Catalog Change Review: Review Shopify product CSV changes before you import

I built Catalog Change Review for the moment before a Shopify product CSV import: you have a current export and an edited file, and want to review what changed. Open both files in the offline utility to inspect price changes, blank replacements and variant concerns. You can export the findings as HTML or CSV. The download includes fictional examples and a quick-start guide, and costs $19 once for the delivered version. It works with Shopify-format product CSVs. It does not connect to your store, import anything, recover deleted products, convert arbitrary supplier files, or guarantee Shopify will accept an import. The report only knows the files you provide. For people who regularly prepare these imports: which changes are hardest to spot during your current review? Please keep examples fictional or remove private catalog data before sharing.