title: Reading a .dat file in Julia, issues with variable delimeter spacing
body: <p>I am having issues reading a .dat file into a dataframe. I think the issue is with the delimiter. I have included a screen shot of what the data in the file looks like below. My best guess is that it is tab delimited between columns and then new-line delimited between rows. I have tried reading  in the data with the following commands:</p>
  
  <pre><code>    df = CSV.File("FORCECHAIN00046.dat"; header=false) |&gt; DataFrame!
      df = CSV.File("FORCECHAIN00046.dat"; header=false, delim = ' ') |&gt; DataFrame!
  </code></pre>
  
  <p>My result either way is just a DataFrame with only one column including all the data frome each column concatenated into one string. I tried to even specify the types with the following code:</p>
  
  <pre><code>df = CSV.File("FORCECHAIN00046.dat"; types=[Float64,Float64,Float64,Float64,
  Float64,Float64,Float64,Float64,Float64,Float64,Float64,Float64]) |&gt; DataFrame!
  </code></pre>
  
  <p>And I received an the following error:</p>
  
  <pre><code>┌ Warning: 2; something went wrong trying to determine row positions for multithreading; it'd be very helpful if you could open an issue at https://github.com/JuliaData/CS
  V.jl/issues so package authors can investigate
  </code></pre>
  
  <p>I can work around this by uploading it into google sheets and then downloading a csv, but I would like to find a way to make the original .dat file work.</p>
  
  <p><a href="https://i.stack.imgur.com/eyu7p.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/eyu7p.png" alt="enter image description here"></a></p>