Can't find Solr config files mentioned in documentation

Hi
I followed this doc
https://www.nopaccelerate.com/wiki/install-and-configure-solr-5-0-to-use-with-nopaccelerate/
but after creating new core I can't find these 3 files :

schema.xml
mapping-FoldToASCII.txt
mapping-ISOLatin1Accent.txt

System Info :
Windows server 2016
Solr 6.4.2 (recommended in documentation)
JRE jre1.8.0_171


I installed the plugin and connect it to the Solr server. all thins seems to be correct . but search result page returns nothing. I thins may be config files are incorrectly configured. I have free licence version to test if we can use this plugin before purchase it

Hello sir,

You can find schema.xml,-FoldToASCII.txt,-ISOLatin1Accent.txt at Plugins>XcellenceIT.Plugin.Solr.Core>SolrConfigfiles>Solr5.0 and Above.
Make sure you delete managed schema file that is already present created core and then replace the files in conf folder.

If still you are facing issue mail us at support@nopaccelerate.com .

Thank you & Best Regards,
Ankita Rana
------------------------
nopAccelerate
Microsoft Action Pack Partner
nopCommerce Solution Partner

I don't seem to have this directory. Using nopCommerce 4.40.4.