docs: function parse_xlink_bin(data, name, _opts) {
  	if(!data) return data;
  	var opts = _opts || {};
  
  	var pass = false, end = false;
  
  	recordhopper(data, function xlink_parse(val, R_n, RT) {
  		if(end) return;
  		switch(RT) {
  			case 0x0167: /* 'BrtSupTabs' */
  			case 0x016B: /* 'BrtExternTableStart' */
  			case 0x016C: /* 'BrtExternTableEnd' */
  			case 0x016E: /* 'BrtExternRowHdr' */
  			case 0x016F: /* 'BrtExternCellBlank' */
  			case 0x0170: /* 'BrtExternCellReal' */
  			case 0x0171: /* 'BrtExternCellBool' */
  			case 0x0172: /* 'BrtExternCellError' */
  			case 0x0173: /* 'BrtExternCellString' */
  			case 0x01D8: /* 'BrtExternValueMeta' */
  			case 0x0241: /* 'BrtSupNameStart' */
  			case 0x0242: /* 'BrtSupNameValueStart' */
  			case 0x0243: /* 'BrtSupNameValueEnd' */
  			case 0x0244: /* 'BrtSupNameNum' */
  			case 0x0245: /* 'BrtSupNameErr' */
  			case 0x0246: /* 'BrtSupNameSt' */
  			case 0x0247: /* 'BrtSupNameNil' */
  			case 0x0248: /* 'BrtSupNameBool' */
  			case 0x0249: /* 'BrtSupNameFmla' */
  			case 0x024A: /* 'BrtSupNameBits' */
  			case 0x024B: /* 'BrtSupNameEnd' */
  				break;
  
  			case 0x0023: /* 'BrtFRTBegin' */
  				pass = true; break;
  			case 0x0024: /* 'BrtFRTEnd' */
  				pass = false; break;
  
  			default:
  				if((R_n||"").indexOf("Begin") > 0){/* empty */}
  				else if((R_n||"").indexOf("End") > 0){/* empty */}
  				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT.toString(16) + " " + R_n);
  		}
  	}, opts);
  }