How to read XML file content?

SheryBulos  Can you try with below java script code

<@liaAddScript>
	;(function ($) {
		$.ajax({
           url : '${asset.get('/html/assets/companyProducts.xml')}',
           type: 'GET',                    
           success : function(data){
           		console.log(data);
           }, 
	       error : function(data){
	        
	       }

        });
	})(LITHIUM.jQuery); 
</@liaAddScript>

I don't think you can parse XML with Freemarker by itself.

Freemarker is Server-side and JavaScript is client-side, so passing information back and forth between them is difficult. 

If you fetched the XML with JS as described above, you could pass the information from it back to the community with and Endpoint. 

If you are able to get the data as Json, Freemarker can parse that natively with ?eval. (Note that asset.get just returns a path string, not file contents). 

Another helpful tool could be using the http.client context object to make HTTP requests to get file contents. This can only be done in the page init script or in an endpoint (recommended).