Compare Excel files: find product sales changes between two monthly CSVs
A real compare Excel files walkthrough using two public monthly sales CSVs, one Messy2Sheet prompt, a remote runner result, and an inline spreadsheet preview.
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Preview the product sales comparison
The product-level comparison CSV generated from two public monthly sales files, shown here so readers can inspect old and new units, revenue deltas, price-change flags, and review notes before downloading.
Inline read-only preview
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