uploaded XML file error

hi,

i have uploaded xml file on my website
while opening file getting below error.

This page contains the following errors:

error on line 12 at column 1: Extra content at the end of the document
Below is a rendering of the page up to the first error.

Apple Apple Macbook 12″ MF855 – 256GB, 1.1Ghz i5, 8GB RAM – Silver https://www.souqbaba.com/shop/laptops-apple/apple-macbook-12-mf855-256gb-1-1ghz-i5-8gb-ram-silver/ 4799 5

What is the problem?