BLUG IN WORDPRESS

Hello..
I want to add a program to a site in WordPress
- A program that deals with API, FTB, CSV, and XML files ... copies the files and publishes them on the site ...
- deals with sites that have (links to products or products with its data) that copies products or links from the other site and publishes them ..
- Each product is downloaded by department
- Specify a date for the product..the end date of the date the product is stopped
- Detects new excel files from within specific folders
A single file may contain more than one product and the product data is written in a specific way, including the expiration date of the product
- As for the pictures, they are in a specific place either, or they are chosen from the device or via a link
-The program handles sites that I want to clear files from manually