XPath

HTML

<?xml version="1.0"?>
<?mso-application progid="Excel.Sheet"?>
<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"
 xmlns:o="urn:schemas-microsoft-com:office:office"
 xmlns:x="urn:schemas-microsoft-com:office:excel"
 xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882"
 xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
 xmlns:html="http://www.w3.org/TR/REC-html40">
 <DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
  <Author>Curt Graff</Author>
  <LastAuthor>Curt Graff</LastAuthor>
  <Created>2018-04-10T14:29:02Z</Created>
  <Company>Brownells, Inc.</Company>
  <Version>16.00</Version>
 </DocumentProperties>
 <CustomDocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
  <VS_x0020_Team_x0020_System_x0020_Data_x0020_DO_x0020_NOT_x0020_EDIT_GUID
   dt:dt="string">5ddaea00-b81f-4d05-852f-fbeb346c098a</VS_x0020_Team_x0020_System_x0020_Data_x0020_DO_x0020_NOT_x0020_EDIT_GUID>
  <VS_x0020_Team_x0020_System_x0020_Data_x0020_DO_x0020_NOT_x0020_EDIT0
   dt:dt="string">RVpSRwEAAACsvduuJceRJfgrAp9zt8JvER4FlRpxBephCt1QjV4Fikx1c0oS1SRVM/X3Y2t5xKHo5pYIx64CkUidPHWOb7/YZdmyZb/57//fX/78q//4/MOP333/13/+yv234av//tvf/O53v/zSr+Sb/vrjP3/19x/++k8/fvO/P//l6x9ff/numx++//H7P/30+ub7v/zTf3z349+//vOPP/392+++/6efPn/9lx//88efPv/ln77/05++++b</VS_x0020_Team_x0020_System_x0020_Data_x0020_DO_x0020_NOT_x0020_EDIT0>
  <VS_x0020_Team_x0020_System_x0020_Data_x0020_DO_x0020_NOT_x0020_EDIT1
   dt:dt="string">zjz99/8PX/+vzV7/9ze9/JT/ybz98//98/uanf/36L5+/+tVP//zV7z5+wVe/Xf72t1/tn//jN7/+/S+/+f/+4Tv1vf/x409/+vGffv3rX29//vrHH7+T3/T1T7LmX/+b/P7/Uf7ffv2nb77+evqT+9PLx9m/Ysxfv/4YPqfXNI/pmzH80af0R/6yf8Uv+/N3P/704z/8hvLV3//u3373h5TGP/7x62+/+cMYv/7mD/HzZ/+HOYWv//A5pM/D5z</VS_x0020_Team_x0020_System_x0020_Data_x0020_DO_x0020_NOT_x0020_EDIT1>
  <VS_x0020_Team_x0020_System_x0020_Data_x0020_DO_x0020_NOT_x0020_EDIT2
  ...

JavaScript

var paragraphCount = document.evaluate( 'count(//p)', document, null, XPathResult.ANY_TYPE, null );
alert( 'This document contains ' + paragraphCount.numberValue + ' paragraph elements' );