Vibe coded Excel Report Comparator

I need a very simple web application that is preferably vibe coded or AI developed, that compares food-ordering Excel reports. A downloadable Excel or PDF of the results is required as well. More details will be explained

I’m flexible on the tech stack; Python with Pandas, Node.js, or another framework of your choice is fine as long as it processes large files quickly and accurately. A lightweight front-end

App functionality:
I upload 2 excel files, I click generate and it outputs 2 files based on the data it was provided.

Deliverables
• Full source code
• Confirmation that the app correctly analyses at least two sample food-ordering reports I’ll provide and outputs the expected metric summary.