title: How to get list of .xlsx file in C#
body: <p>I am developing Windows Form application and I want to have a list of .xlsx files in the folder say -</p>
  <pre><code>C:\Equipment\Exchanger\AES\
  </code></pre>
  <p>The folder may contain files like -</p>
  <pre><code>00-E-001,
  00-E-002,
  03-E-005,
  04-E-001 and so on..
  </code></pre>
  <p>I don't want to open file dialogs but want to see a combo box showing the FileName (no extension). Based on selection of combobox I want to show the values of certain cells in the various text boxes but that is later part.</p>