title: Graph three columns in Excel as one data point
body: <p>I'm having trouble graphing some data in Excel properly. I have three columns, which are time, name, and value. If I'm just graphing one name, i.e. "speed", my file looks like this</p>
  
  <pre><code>time  |  data  |  value
    1   |  speed |   1
    2   |  speed |   2
    3   |  speed |   3
  </code></pre>
  
  <p>When I try to graph this, it thinks speed is three different things, and graphs as speed 1, speed 2 and speed 3. I instead want a straight line with a slope of 1, called speed, so it recognizes that they're all the same data. Ideally, I could add in extra data names such as acceleration, and it would treat all of those the same too.</p>