Mine isn't that large (2683 bytes, 111 lines, quite new, no
intentional MIME-related changes):
--
<?xml version="1.0"?>
<RDF:RDF xmlns:NC="http://home.netscape.com/NC-rdf#"
xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<RDF:Description
RDF:about="urn:mimetype:externalApplication:text/txt"
NC:path="E:\TCPIP\SeaMonkey\seamonkey.exe"
NC:prettyName="seamonkey.exe" />
<RDF:Description RDF:about="urn:mimetype:text/txt"
NC:value="text/txt"
NC:editable="true"
NC:description="Text File">
<NC:fileExtensions>txt</NC:fileExtensions>
<NC:fileExtensions>text</NC:fileExtensions>
<NC:handlerProp RDF:resource="urn:mimetype:handler:text/txt"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetypes">
<NC:MIME-types RDF:resource="urn:mimetypes:root"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:handler:text/csv"
NC:alwaysAsk="true"
NC:saveToDisk="true"
NC:useSystemDefault="false">
<NC:externalApplication
RDF:resource="urn:mimetype:externalApplication:text/csv"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:application/x-jpg"
NC:value="application/x-jpg"
NC:editable="true"
NC:fileExtensions="jpg"
NC:description="JPG-bestand">
<NC:handlerProp
RDF:resource="urn:mimetype:handler:application/x-jpg"/>
</RDF:Description>
<RDF:Seq RDF:about="urn:mimetypes:root">
<RDF:li RDF:resource="urn:mimetype:application/zip"/>
<RDF:li RDF:resource="urn:mimetype:application/x-trp"/>
<RDF:li RDF:resource="urn:mimetype:text/txt"/>
<RDF:li RDF:resource="urn:mimetype:application/x-pdf"/>
<RDF:li RDF:resource="urn:mimetype:application/pdf"/>
<RDF:li RDF:resource="urn:mimetype:application/x-jpg"/>
<RDF:li RDF:resource="urn:mimetype:text/csv"/>
</RDF:Seq>
<RDF:Description RDF:about="urn:root"
NC:nl_defaultHandlersVersion="-1" />
<RDF:Description RDF:about="urn:mimetype:application/x-trp"
NC:value="application/x-trp"
NC:editable="true"
NC:fileExtensions="trp"
NC:description="TRP-bestand">
<NC:handlerProp
RDF:resource="urn:mimetype:handler:application/x-trp"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:application/pdf"
NC:fileExtensions="pdf"
NC:description="PDF-bestand"
NC:value="application/pdf"
NC:editable="true">
<NC:handlerProp
RDF:resource="urn:mimetype:handler:application/pdf"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:handler:text/txt"
NC:alwaysAsk="true"
NC:saveToDisk="false"
NC:useSystemDefault="false"
NC:handleInternal="false">
<NC:externalApplication
RDF:resource="urn:mimetype:externalApplication:text/txt"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:text/csv"
NC:fileExtensions="csv"
NC:description="csv File"
NC:value="text/csv"
NC:editable="true">
<NC:handlerProp RDF:resource="urn:mimetype:handler:text/csv"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:application/zip"
NC:fileExtensions="zip"
NC:description="zip File"
NC:value="application/zip"
NC:editable="true">
<NC:handlerProp
RDF:resource="urn:mimetype:handler:application/zip"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:handler:application/x-trp"
NC:alwaysAsk="true"
NC:useSystemDefault="true">
<NC:externalApplication
RDF:resource="urn:mimetype:externalApplication:application/x-trp"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:handler:application/pdf"
NC:alwaysAsk="true"
NC:saveToDisk="true"
NC:useSystemDefault="false">
<NC:externalApplication
RDF:resource="urn:mimetype:externalApplication:application/pdf"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:handler:application/zip"
NC:alwaysAsk="true"
NC:saveToDisk="true"
NC:useSystemDefault="false">
<NC:externalApplication
RDF:resource="urn:mimetype:externalApplication:application/zip"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:handler:application/x-jpg"
NC:alwaysAsk="true"
NC:useSystemDefault="true">
<NC:externalApplication
RDF:resource="urn:mimetype:externalApplication:application/x-jpg"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:application/x-pdf"
NC:value="application/x-pdf"
NC:editable="true"
NC:fileExtensions="pdf"
NC:description="PDF-bestand">
<NC:handlerProp
RDF:resource="urn:mimetype:handler:application/x-pdf"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mimetype:handler:application/x-pdf"
NC:alwaysAsk="true"
NC:useSystemDefault="true">
<NC:externalApplication
RDF:resource="urn:mimetype:externalApplication:application/x-pdf"/>
</RDF:Description>
</RDF:RDF>