Zend certified PHP/Magento developer

Code exported in the Description column of Product Export instead of actual descriptions

Magento 2.4.5-p1

I have exported products from Magento 2.4.5-p1. When I open the CSV file and look at the Description column, some rows show the actual Product Description while many others show the following:

<div data-content-type="html" data-appearance="default" data-element

Why is that and how to fix?