Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//usr/share/mime/image/jpx.xml

 <?xml version="1.0" encoding="utf-8"?>
<mime-type xmlns="http://www.freedesktop.org/standards/shared-mime-info" type="image/jpx">
  <!--Created automatically by update-mime-database. DO NOT EDIT!-->
  <comment>JPEG-2000 JPX image</comment>
  <acronym>JPX</acronym>
  <expanded-acronym>JPEG-2000 eXtended</expanded-acronym>
  <glob pattern="*.jpf"/>
  <glob pattern="*.jpx"/>
</mime-type>