title: how to create a log to track excel refresh
body: <p>I have connected excel to MySQL database using PHP. Right now, my users can refresh the excel spread sheet to  get the current data from MySQL database. I used web query instead of ODBC.</p>
  
  <p>But, I want to create a log file in MySQL database to track when, who, and what cell/value has been refreshed .</p>
  
  <p>I tried to use triggers, however, it only tracks table changes within MySQL database, not excel. </p>