title: reading and plotting txt file in autocad
body: <p>I want to read a txt file in autocad and plot them (line/polyline).
  it may looks like</p>
  
  <pre><code>1 x11 y11 z11.......x14, y14,z14  % polyline 1
  ..
  n xn1 yn1 zn1.......xn4, yn4,zn4  % polyline n
  </code></pre>
  
  <p>I want to know what is best and easy way to do this. What programming language I should use.
  What are useful links or is there somework already done in this direction.
  Best regards,</p>