Cant add a list row! 400 bad request

[Yuval Yogev]

Im trying to add a list row to my spreadsheet but I'm having trouble with it 
(400 bad request). here is my ajax call:

 var url = "https://spreadsheets.google.com/feeds/list/(my key here)/(my 
worksheet id here)/private/full";

        var dataType = "application/atom+xml; charset=UTF-8; type=entry";

        var dataFile = "as.xml";

        

        

        var success = function()

        {

            alert('success');

        }

        $.ajax({

               type: 'POST',

               url: url,

               data:dataFile,

               success: success,

               contentType: dataType

               });



here is my as.xml file:


<entry xmlns="http://www.w3.org/2005/Atom";

    xmlns:gsx="http://schemas.google.com/spreadsheets/2006/extended";>

    <gsx:name>Elizabeth Bennet</gsx:name>

    <gsx:items>60</gsx:items>

</entry> 


Appreciate your help!