title: Valid XPath does not return value for the IMPORTXML formula
body: <p>I don't understand how to get an attribute?</p>
  <p>This code return error <strong>error: The xPath query did not return any data</strong></p>
  <pre><code>=IMPORTXML(
    &quot;http://www.cbr.ru/scripts/XML_dynamic.asp?date_req1=01.01.2013&amp;date_req2=15.03.2013&amp;VAL_NM_RQ=R01235&quot;;
    &quot;/ValCurs/Record/@Date&quot;
  )
  </code></pre>
  <p>There is a similar problem <a href="https://stackoverflow.com/questions/10378453/google-spreadsheet-importxml-cant-figure-out-how-to-get-time-attribute">Can&#39;t figure out how to get time attribute</a></p>