Hello Lisa,
I have tested this on the site and apparently the file is a little too big and it causes PHP to not be able to render the xml file. It is hitting the following errors,
Memory allocation failed : growing buffer
However, upon opening up the xml file, I notice that there are tons of spams in the xml file itself. Could you please delete these spams first and try to re-export again from Wordpress? It wouldn't make sense to also import the spams over to EasyBlog