title: Visual Studio Regular Expressions - Matching first word in a file
body: <p>Is it possible to match the first word in a file using Visual Studio Regex?</p>
  
  <p>e.g. ^using matches multiple statements where "using" matches the first five characters on a line.</p>
  
  <p>I need to find and replace the only first using statement where "using" matches the first five characters in the file.</p>
  
  <p>Thanks,</p>
  
  <p>M</p>