XML error message: Extra content at the end of the document

I'm really new to this XML and web world. Please if anyone can help me, I'd really appreciate it. It may just be a minor mistake but I cannot find how to resolve. it. I have written an XML document but I get an error message saying:

This page contains the following errors:

error on line 6 at column 1: Extra content at the end of the document

---

<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet type="text/css" href="student_faculty_directory.css"?>
<haccdirectory xmlns:xsi="http://ift.tt/ra1lAU" xsi:schemaLocation="student_faculty_directory_Schema.xsd" />


<haccdirectory> <!--this is where the ERROR occurs-->
<s:student xmlns:s="http://ift.tt/1cz9aOQ">
    <class101>
        <s:name>Austin Tang</s:name>
            <s:info>
                <s:age>28</s:age>
                <s:gender>Male</s:gender>
                <s:major>Web Development</s:major>
                <s:enrollment>SPR12</s:enrollment>
                <s:transferstudent>No</s:transferstudent>
                <s:id>H01179944</s:id>
            </s:info>
        <s:name>Jeremy Riddle</s:name>
            <s:info>
                <s:age>21</s:age>
                <s:gender>Male</s:gender>
                <s:major>Web Design</s:major>
                <s:enrollment>SPR13</s:enrollment>
                <s:transferstudent>Yes</s:transferstudent>
                <s:id>H01539441</s:id>
            </s:info>
        <s:name>Debbie Scissors</s:name>
            <s:info>
                <s:age>19</s:age>
                <s:gender>Male</s:gender>
                <s:major>Web Development</s:major>
                <s:enrollment>FAL14</s:enrollment>
                <s:transferstudent>No</s:transferstudent>
                <s:id>H01570984</s:id>
            </s:info>
        <s:name>Craig Davidson</s:name>
            <s:info>
                <s:age>22</s:age>
                <s:gender>Male</s:gender>
                <s:major>Web Development</s:major>
                <s:enrollment>SPR14</s:enrollment>
                <s:transferstudent>Yes</s:transferstudent>
                <s:id>H01578433</s:id>
            </s:info>
        <s:name>Justin Beer</s:name>
            <s:info>
                <s:age>24</s:age>
                <s:gender>Male</s:gender>
                <s:major>Web Design</s:major>
                <s:enrollment>SPR13</s:enrollment>
                <s:transferstudent>No</s:transferstudent>
                <s:id>H01091349</s:id>
            </s:info>
        <s:name>Melody Herman</s:name>
            <s:info>
                <s:age>19</s:age>
                <s:gender>Female</s:gender>
                <s:major>Web Design</s:major>
                <s:enrollment>SPR12</s:enrollment>
                <s:transferstudent>No</s:transferstudent>
                <s:id>H01992341</s:id>
            </s:info>
    </class101>
</s:student>

<f:faculty xmlns:f="http://ift.tt/1AMA7DW">
    <teacher>
        <f:name>Andre Miller</f:name>
            <f:information>
                <f:age>39</f:age>
                <f:gender>Male</f:gender>
                <f:hiredate>2003-05-23</f:hiredate>
                <f:id>H01908314</f:id>
                <f:campus>Lancaster</f:campus>
            </f:information>
        <f:name>Melody Wright</f:name>
            <f:information>
                <f:age>32</f:age>
                <f:gender>Female</f:gender>
                <f:hiredate>2002-07-12</f:hiredate>
                <f:id>H01809312</f:id>
                <f:campus>Gettysburg</f:campus>
            </f:information>
        <f:name>Andrew Yoder</f:name>
            <f:information>
                <f:age>44</f:age>
                <f:gender>Male</f:gender>
                <f:hiredate>2001-08-12</f:hiredate>
                <f:id>H01782354</f:id>
                <f:campus>Harrisburg</f:campus>
            </f:information>
        <f:name>Heather Miller</f:name>
            <f:information>
                <f:age>50</f:age>
                <f:gender>Female</f:gender>
                <f:hiredate>2001-07-31</f:hiredate>
                <f:id>H01742121</f:id>
                <f:campus>Harrisburg</f:campus>
            </f:information>
        <f:name>Stephanie King</f:name>
            <f:information>
                <f:age>37</f:age>
                <f:gender>Female</f:gender>
                <f:hiredate>2012-09-01</f:hiredate>
                <f:id>H01922111</f:id>
                <f:campus>Lancaster</f:campus>
            </f:information>
        <f:name>Robert Freeman</f:name>
            <f:information>
                <f:age>31</f:age>
                <f:gender>Male</f:gender>
                <f:hiredate>2014-09-10</f:hiredate>
                <f:id>H01801154</f:id>
                <f:campus>Gettysburg</f:campus>
            </f:information>
        <f:name>Casey Stevenson</f:name>
            <f:information>
                <f:age>31</f:age>
                <f:gender>Female</f:gender>
                <f:hiredate>2014-05-30</f:hiredate>
                <f:id>H01642029</f:id>
                <f:campus>Harrisburg</f:campus>
            </f:information>
    </teacher>
</f:faculty>
</haccdirectory>