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RELS.XLMETA = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sheetMetadata";function parse_xlmeta_xml(data, name, opts) {  var out = { Types: [] };  if (!data)    return out;  var pass = false;  data.replace(tagregex, function(x, idx) {    var y = parsexmltag(x);    switch (strip_ns(y[0])) {      case "<?xml":        break;      case "<metadata":      case "</metadata>":        break;      case "<metadataTypes":      case "</metadataTypes>":        break;      case "<metadataType":        out.Types.push({ name: y.name });        break;      case "<futureMetadata":        break;      case "</futureMetadata>":        break;      case "<bk>":        break;      case "</bk>":        break;      case "<rc":        break;      case "</rc>":        break;      case "<cellMetadata":      case "</cellMetadata>":        break;      case "<valueMetadata":        break;      case "</valueMetadata>":        break;      case "<extLst":      case "<extLst>":      case "</extLst>":      case "<extLst/>":        break;      case "<ext":        pass = true;        break;      case "</ext>":        pass = false;        break;      default:        if (!pass && opts.WTF)          throw new Error("unrecognized " + y[0] + " in metadata");    }    return x;  });  return out;}function write_xlmeta_xml() {  var o = [XML_HEADER];  o.push('<metadata xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:xlrd="http://schemas.microsoft.com/office/spreadsheetml/2017/richdata" xmlns:xda="http://schemas.microsoft.com/office/spreadsheetml/2017/dynamicarray">\n  <metadataTypes count="1">\n    <metadataType name="XLDAPR" minSupportedVersion="120000" copy="1" pasteAll="1" pasteValues="1" merge="1" splitFirst="1" rowColShift="1" clearFormats="1" clearComments="1" assign="1" coerce="1" cellMeta="1"/>\n  </metadataTypes>\n  <futureMetadata name="XLDAPR" count="1">\n    <bk>\n      <extLst>\n        <ext uri="{bdbb8cdc-fa1e-496e-a857-3c3f30c029c3}">\n          <xda:dynamicArrayProperties fDynamic="1" fCollapsed="0"/>\n        </ext>\n      </extLst>\n    </bk>\n  </futureMetadata>\n  <cellMetadata count="1">\n    <bk>\n      <rc t="1" v="0"/>\n    </bk>\n  </cellMetadata>\n</metadata>');  return o.join("");}