POI is a big black empty box

[dracokalen]

OK, only partially competent computer person here. I have a EQ2UI_custom.XML bui I don't know how to open it. Everythime I try, the computer tries but opens up an internet page saying The XML page cannot be displayed
Cannot view XML input using XSL style sheet. Please correct the error and then click the Refresh button, or try again later.


--------------------------------------------------------------------------------

Only one top level element is allowed in an XML document. Error processing resource 'file:///C:/Program Files/Sony/EverQues...

<Namespace Name="ProfitUI_Styles">
-^