<_comment>Microsoft Excel Spreadsheet</_comment>
    <magic priority="50">
      <match value="Microsoft\ Excel\ 5.0\ Worksheet" type="string" offset="2080"/>
      <match value="Foglio\ di\ lavoro\ Microsoft\ Exce" type="string" offset="2080"/>
      <match value="Biff5" type="string" offset="2114"/>
      <match value="Biff5" type="string" offset="2121"/>
      <match value="0xd0cf11e0a1b11ae1" type="string" offset="0:8">

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	var xl xlMetaV2
	err := xl.Load(data)
	if err != nil {
		t.Fatal(err)
	}
	v0 := xl.versions[0]

	// Saved with signature 0xfe, 0x54, 0xbc, 0x2f

	binary.BigEndian.PutUint32(dst[dataOffset-4:dataOffset], uint32(len(dst)-dataOffset))

	// Add CRC of metadata as fixed size (5 bytes)
	// Prior to v1.3 this was variable sized.
	tmp = tmp[:5]
	tmp[0] = 0xce // muint32
	binary.BigEndian.PutUint32(tmp[1:], uint32(xxhash.Sum64(dst[dataOffset:])))
	dst = append(dst, tmp[:5]...)
	return append(dst, x.data...), nil
}

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