XML reading many documents

I want to load every time the page parse a bunch of XML files, each XML file contain some basic data, ex: title, description, a few links and links to images.

I am having like 50 xml files.

Is it bad practice to search for XML files in a specific directory and then based from the XML files parse the HTML document? I cannot use a DB for this.

Is it a heavy load for the server? I am talking about 1000 visitors a day.