This file won't open, 12mb, i think it didn't save right?

I've been told that i can edit the end of the file to fix is, can anyone help me? The file is inbetween 12 -13 mbs and i get an error(Failed to load the requested file P:\2013-2014\Graphic Design\Planetside 2 Advertisment.svg) This is a project for school and i don't want to redo it.

here is the end of the file.

        transform="matrix(0.69007244,0,0,0.69007244,-388.43688,2824.8423)"
         d="m -1221.969,435.20099 c 0,39.35753 -33.3895,71.26311 -74.5776,71.26311 -41.1881,0 -74.5777,-31.90558 -74.5777,-71.26311 0,-39.35753 33.3896,-71.26311 74.5777,-71.26311 41.1881,0 74.5776,31.90558 74.5776,71.26311 z"
         sodipodi:ry="71.263107"
         sodipodi:rx="74.577667"
         sodipodi:cy="435.20099"
         sodipodi:cx="-1296.5466"
         id="path4313-0-1"
         style="fill:url(#radialGradient15424-4);fill-opacity:1;stroke:none;filter:url(#filter12245-23-3)"
         sodipodi:type="arc" />
      <path
         sodipodi:type="arc"
         style="fill:url(#radialGradient15426-0);fill-opacity:1;stroke:none;filter:url(#filter12245-23-3)"
         id="path4294-2-3"
         sodipodi:cx="506.02328"
         sodipodi:cy="382.7204"
         sodipodi:rx="66.29126"
         sodipodi:ry="92.80777"
         d="m 572.31454,382.7204 c 0,51.25631 -29.6796,92.80777 -66.29126,92.80777 -36.61165,0 -66.29125,-41.55146 -66.29125,-92.80777 0,-51.25632 29.6796,-92.80777 66.29125,-92.80777 36.61166,0 66.29126,41.55145 66.29126,92.80777 z"
         transform="matrix(0.64577773,0,0,0.46126977,-1609.3246,2948.639)" />
      <path
         inkscape:transform-center-y="-5.9758889"
         inkscape:transform-center-x="-0.2414221"
         transform="matrix(0.67044431,0,0,0.67044431,-391.14638,2863.3568)"
         d="m -1293.7844,446.80196 -37.8553,-28.89055 -38.5389,27.97213 15.7786,-44.9302 -38.5123,-28.00881 47.607,1.12216 14.7371,-45.28253 13.6441,45.62374 47.6202,0.0227 -39.1744,27.07485 z"
         inkscape:randomized="0"
         inkscape:rounded="0"
         inkscape:flatsided="false"
         sodipodi:arg2="1.5828179"
         sodipodi:arg1="0.95449939"
         sodipodi:r2="24.144201"
         sodipodi:r1="64.989487"
         sodipodi:cy="393.76895"
         sodipodi:cx="-1331.3495"
         sodipodi:sides="5"
         id="path4311-6-5"
         style="fill:#bc7e31;fill-opacity:1;stroke:#6e5f1c;stroke-width:1.79999995;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;filter:url(#filter12245-23-3)"
         sodipodi:type="star" />
    </g>
    <rect
       style="fill:#000000;fill-opacity:1;stroke:none;filter:url(#filter8874)"
       id="rect4131"
       width="1012.5769"
       height="786.30273"
       x="-1241.3854"
       y="1290.2867" />
    <image
       y="1385.1332"
       x="-1224.4148"
       id="image4128"
       xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA (A lot of letters and numbers i could't add) AoWTToDWmk

Hi,

Is it possible for you to give us a link to download the actual file so that we can investigate it ?

My first try would be to get the included PNG file (the "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA (A lot of letters and numbers i could't add) AoWTToDWmk" part) to an external file (replacing everything from "data:..." to the end of the Base64 encoding with a link to the file, like 'xlink:href="file:///link/to/the/file.png"'). If you've lost the file, copy/pasting the long letter list iVBORw0.... into http://www.askapache.com/online-tools/base64-image-converter/ will give you the image back, that you can save and link.

I can try to help you with that if you provide a link to your original svg (zipped or 7zipped for convenience, please),

regards