$ php maintenance/shell.php 
>>> $mwProps = new MWFileProps( MediaWiki\MediaWikiServices::getInstance()->getMimeAnalyzer() );
=> MWFileProps {#334}

>>> $mwProps->getPropsFromPath( '/tmp/DB.odb', true );
=> [
     "fileExists" => true,
     "size" => 2498,
     "file-mime" => "application/zip",
     "major_mime" => "application",
     "minor_mime" => "zip",
     "mime" => "application/zip",
     "sha1" => "5tlzupz0ww3q8w9pkowrdq72g0wnsqa",
     "metadata" => "",
     "width" => 0,
     "height" => 0,
     "bits" => 0,
     "media_type" => "ARCHIVE",
   ]
>>> 

[Mime] MimeAnalyzer::loadFiles: loading mime types from /home/hashar/projects/mediawiki/core/includes/libs/mime/mime.types
[Mime] MimeAnalyzer::loadFiles: loading mime info from /home/hashar/projects/mediawiki/core/includes/libs/mime/mime.info
[Mime] MimeAnalyzer::doGuessMimeType: analyzing head and tail of /tmp/DB.odb for magic numbers.
[Mime] MimeAnalyzer::doGuessMimeType: ZIP header present in /tmp/DB.odb
[Mime] MimeAnalyzer::detectZipType: unable to identify type of ZIP archive
[Mime] MimeAnalyzer::guessMimeType: guessed mime type of /tmp/DB.odb: application/zip
[Mime] MimeAnalyzer::improveTypeFromExtension: improved mime type for .odb: application/zip
MediaHandlerFactory::getHandler: no handler found for application/zip.

application/vnd.oasis.opendocument.database odb

function detectZipType( $header, $tail = null, $ext = false ) {

    $opendocTypes = [
        'chart-template',
        'chart',
        'formula-template',
        'formula',
        'graphics-template',
        'graphics',
        'image-template',
        'image',
        'presentation-template',
        'presentation',
        'spreadsheet-template',
        'spreadsheet',
        'text-template',
        'text-master',
        'text-web',
        'text' ];

    // https://lists.oasis-open.org/archives/office/200505/msg00006.html
    $types = '(?:' . implode( '|', $opendocTypes ) . ')';
    $opendocRegex = "/^mimetype(application\/vnd\.oasis\.opendocument\.$types)/";

    if ( preg_match( $opendocRegex, substr( $header, 30 ), $matches ) ) {
        $mime = $matches[1];
        $this->logger->info( __METHOD__ . ": detected $mime from ZIP archive\n" );