title: SAS Proc Export to .txt - export variable names even if file is null
body: <p>I have a set of code that I run regularly and sometime that code produces a table with all null values. Since I have this automated I want the column headers to still be exported to the txt file even when the value is null.</p>
  
  <p>Thanks!
  B</p>
  
  <p>Example:</p>
  
  <p>A  B  C
  .  .  .</p>
  
  <p>Current txt Output = blank;</p>
  
  <p>Ideal:</p>
  
  <p>A, B, C</p>