<p><strong>Excel 365 / 2019+ :</strong><br>
Utilisez <code>CONCAT</code> avec <code>FILTER</code> ou simplement les formules imbriquées.</p>
<p><strong>Toutes versions :</strong><br>
Utilisez des SI imbriqués :</p>
<pre><code class="lang-auto">=SI(A1<>"";A1;SI(B1<>"";B1;SI(C1<>"";C1;"")))
</code></pre>
<p><strong>VBA :</strong></p>
<pre data-code-wrap="vba"><code class="lang-vba">Function Coalesce(ParamArray vals()) As Variant
Dim v As Variant
For Each v In vals
If Not IsEmpty(v) And v <> "" Then
Coalesce = v
Exit Function
End If
Next
End Function
</code></pre>