pls help with the definitions in schema.xml and how to get a copy of files

[Vince McMahon]

Hi,

I need some help to clarify a schema.xml  I am trying to find out where the
fieldtype string is defined.

I open the defination of the schema.xml from admin UI
https://localhost:8984/solr/cookbookCSV/admin/file?wt=json&_=1700536107495&;
file=schema.xml&contentType=text%2Fxml%3Bcharset%3Dutf-8

How can I find out:
1) the location of these 3 files, fieldTypes.xml, core.xml, and pmatch.xml.
It seems the fieldtypes and etc are defined there.
2) how to download a copy of these 3 files?

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE schema
[
    <!ENTITY fieldTypes SYSTEM "fieldTypes.xml">
    <!ENTITY core SYSTEM "core.xml">
    <!ENTITY pmatch SYSTEM "pmatch.xml">
]>
<schema name="cookbookCSV" version="1.6">
    &core;
    &pmatch;

    <field name="isbn" type="string" indexed="true" stored="true"/>

    <!-- These fields become free-text searchable  -->
    <copyField source="isbn" dest="_text_"/>
    <copyField source="isbn" dest="_fuzzy_"/>\
    ...

    &fieldTypes;
</schema>