title: Printing a , in CSV file using c programming
body: <pre><code>FILE * fp = fopen ("excel.csv" , " w+ ");
  fprintf (fp, "%s", "hello,world");
  </code></pre>
  
  <p>I want to print <code>hello,world</code> with comma in a single cell.
  How can I print the same without printing in two different cells?</p>