You have received an Excel file, but the store names are in merged cells, subtotals are inserted in the middle, and headings ...
If spreadsheets are your thing, but Microsoft Office isn't, you might want to give the open-source clone, GridCraft, a try.
The first bug its tests caught was the AI's own.
Previously, I wrote an article titled "I Processed 100 Excel Files at Once Using AI: The Work of an Engineer Who Didn't Write ...