<xsl:variable name="v:media-type-map"
              as="map(xs:string, xs:string)">
   <xsl:map>
      <xsl:map-entry key="'.aac'" select="'audio/aac'"/>
      <xsl:map-entry key="'.abw'" select="'application/x-abiword'"/>
      <xsl:map-entry key="'.arc'" select="'application/x-freearc'"/>
      <xsl:map-entry key="'.avif'" select="'image/avif'"/>
      <xsl:map-entry key="'.avi'" select="'video/x-msvideo'"/>
      <xsl:map-entry key="'.azw'" select="'application/vnd.amazon.ebook'"/>
      <xsl:map-entry key="'.bin'" select="'application/octet-stream'"/>
      <xsl:map-entry key="'.bmp'" select="'image/bmp'"/>
      <xsl:map-entry key="'.bz'" select="'application/x-bzip'"/>
      <xsl:map-entry key="'.bz2'" select="'application/x-bzip2'"/>
      <xsl:map-entry key="'.cda'" select="'application/x-cdf'"/>
      <xsl:map-entry key="'.csh'" select="'application/x-csh'"/>
      <xsl:map-entry key="'.css'" select="'text/css'"/>
      <xsl:map-entry key="'.csv'" select="'text/csv'"/>
      <xsl:map-entry key="'.doc'" select="'application/msword'"/>
      <xsl:map-entry key="'.docx'"
                     select="'application/vnd.openxmlformats-officedocument.wordprocessingml.document'"/>
      <xsl:map-entry key="'.eot'" select="'application/vnd.ms-fontobject'"/>
      <xsl:map-entry key="'.epub'" select="'application/epub+zip'"/>
      <xsl:map-entry key="'.gz'" select="'application/gzip'"/>
      <xsl:map-entry key="'.gif'" select="'image/gif'"/>
      <xsl:map-entry key="'.htm'" select="'text/html'"/>
      <xsl:map-entry key="'.html'" select="'text/html'"/>
      <xsl:map-entry key="'.ico'" select="'image/vnd.microsoft.icon'"/>
      <xsl:map-entry key="'.ics'" select="'text/calendar'"/>
      <xsl:map-entry key="'.jar'" select="'application/java-archive'"/>
      <xsl:map-entry key="'.jpeg'" select="'image/jpeg'"/>
      <xsl:map-entry key="'.jpg'" select="'image/jpeg'"/>
      <xsl:map-entry key="'.js'" select="'text/javascript'"/>
      <xsl:map-entry key="'.json'" select="'application/json'"/>
      <xsl:map-entry key="'.jsonld'" select="'application/ld+json'"/>
      <xsl:map-entry key="'.mid'" select="'audio/midi'"/>
      <xsl:map-entry key="'.midi'" select="'audio/midi'"/>
      <xsl:map-entry key="'.mjs'" select="'text/javascript'"/>
      <xsl:map-entry key="'.m3u8'" select="'application/x-mpegURL'"/>
      <xsl:map-entry key="'.mp3'" select="'audio/mpeg'"/>
      <xsl:map-entry key="'.mp4'" select="'video/mp4'"/>
      <xsl:map-entry key="'.mpeg'" select="'video/mpeg'"/>
      <xsl:map-entry key="'.mpkg'" select="'application/vnd.apple.installer+xml'"/>
      <xsl:map-entry key="'.mov'" select="'video/quicktime'"/>
      <xsl:map-entry key="'.odp'" select="'application/vnd.oasis.opendocument.presentation'"/>
      <xsl:map-entry key="'.ods'" select="'application/vnd.oasis.opendocument.spreadsheet'"/>
      <xsl:map-entry key="'.odt'" select="'application/vnd.oasis.opendocument.text'"/>
      <xsl:map-entry key="'.oga'" select="'audio/ogg'"/>
      <xsl:map-entry key="'.ogv'" select="'video/ogg'"/>
      <xsl:map-entry key="'.ogx'" select="'application/ogg'"/>
      <xsl:map-entry key="'.opus'" select="'audio/opus'"/>
      <xsl:map-entry key="'.otf'" select="'font/otf'"/>
      <xsl:map-entry key="'.png'" select="'image/png'"/>
      <xsl:map-entry key="'.pdf'" select="'application/pdf'"/>
      <xsl:map-entry key="'.php'" select="'application/x-httpd-php'"/>
      <xsl:map-entry key="'.ppt'" select="'application/vnd.ms-powerpoint'"/>
      <xsl:map-entry key="'.pptx'"
                     select="'application/vnd.openxmlformats-officedocument.presentationml.presentation'"/>
      <xsl:map-entry key="'.rar'" select="'application/vnd.rar'"/>
      <xsl:map-entry key="'.rtf'" select="'application/rtf'"/>
      <xsl:map-entry key="'.sh'" select="'application/x-sh'"/>
      <xsl:map-entry key="'.svg'" select="'image/svg'"/>
      <!-- not image/svg+xml for epub -->
      <xsl:map-entry key="'.tar'" select="'application/x-tar'"/>
      <xsl:map-entry key="'.tif'" select="'image/tiff'"/>
      <xsl:map-entry key="'.tiff'" select="'image/tiff'"/>
      <xsl:map-entry key="'.ts'" select="'video/mp2t'"/>
      <xsl:map-entry key="'.ttf'" select="'font/ttf'"/>
      <xsl:map-entry key="'.txt'" select="'text/plain'"/>
      <xsl:map-entry key="'.text'" select="'text/plain'"/>
      <xsl:map-entry key="'.vsd'" select="'application/vnd.visio'"/>
      <xsl:map-entry key="'.wav'" select="'audio/wav'"/>
      <xsl:map-entry key="'.weba'" select="'audio/webm'"/>
      <xsl:map-entry key="'.webm'" select="'video/webm'"/>
      <xsl:map-entry key="'.webp'" select="'image/webp'"/>
      <xsl:map-entry key="'.wmv'" select="'video/x-ms-wmv'"/>
      <xsl:map-entry key="'.woff'" select="'font/woff'"/>
      <xsl:map-entry key="'.woff2'" select="'font/woff2'"/>
      <xsl:map-entry key="'.xhtml'" select="'application/xhtml+xml'"/>
      <xsl:map-entry key="'.xls'" select="'application/vnd.ms-excel'"/>
      <xsl:map-entry key="'.xlsx'"
                     select="'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'"/>
      <xsl:map-entry key="'.xml'" select="'application/xml'"/>
      <xsl:map-entry key="'.xul'" select="'application/vnd.mozilla.xul+xml'"/>
      <xsl:map-entry key="'.zip'" select="'application/zip'"/>
      <xsl:map-entry key="'.7z'" select="'application/x-7z-compressed'"/>
   </xsl:map>
</xsl:variable>