<magic priority="60">
      <match value="0x0A0D0D0A" type="string" offset="0">
        <!-- Could only find examples of the second. I have not tested the first -->
        <match value="0xa1b2c3d4" type="big32" offset="8" />
        <match value="0x4d3c2b1a" type="string" offset="8" />
      </match>
    </magic>
    <glob pattern="*.pcapng"/>