oot/assets/xml/objects/object_gi_longsword.xml

<Root>
    <ExternalFile XmlPath="objects/gameplay_keep.xml" OutPath="objects/gameplay_keep/"/>
    <File Name="object_gi_longsword" Segment="6">
        <DList Name="gGiBiggoronSwordDL" Offset="0x0600"/>
    </File>
</Root>