<p><strong>En VBA :</strong></p>
<pre data-code-wrap="vba"><code class="lang-vba">Dim dateStr As String
dateStr = Format(Range("A1").Value, "dd/mm/yyyy")
</code></pre>
<p><strong>En formule :</strong></p>
<pre><code class="lang-auto">=TEXTE(A1;"jj/mm/aaaa")
</code></pre>
<p><strong>En Python :</strong></p>
<pre data-code-wrap="python"><code class="lang-python">from datetime import datetime, timedelta
date_excel = 44561 # nombre de jours depuis 1/1/1900
date = datetime(1899, 12, 30) + timedelta(days=date_excel)
date_str = date.strftime('%d/%m/%Y')
</code></pre>