Minor modifications to an existing web program

This project should be pretty straightforward which should be good fo you because I need a really quick turnaround. Pretty much within 2 or 3 days from publishing this project.

An application which is used to generate a .xlsx file needs a slight modification. It generates a spead sheed based on a template which is embeded into the application. Now, every spead sheet that the application generates needs to be unique and so the user must upload a template before the program can generate the spread populated with the correct data.

I will providee a quick video demo of the app along with a detailed descrioption of what I need once I award the project. Magic word for this project is "guitar".

Budget for the project is £25, please don't quote above that. Plesse don't use ChatGPT when writing your proposal, its a real insult. All code must sit on my server when finished, no proxies and no code running from your own server once everything is finished. I need this working by the end of Thusday. I can give you FTP and phpMyAdmin access, I'm pretty sure that's all you'll need.

Thanks