# C1.C1Preview.Export.ExportProvider.DefaultExtension

## Content

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<h1 id="C1_C1Preview_Export_ExportProvider_DefaultExtension_" data-uid="C1.C1Preview.Export.ExportProvider.DefaultExtension*">DefaultExtension Property
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<a id="C1_C1Preview_Export_ExportProvider_DefaultExtension_" data-uid="C1.C1Preview.Export.ExportProvider.DefaultExtension*"></a>
<h4 id="C1_C1Preview_Export_ExportProvider_DefaultExtension" data-uid="C1.C1Preview.Export.ExportProvider.DefaultExtension">DefaultExtension</h4>
<div class="markdown level1 summary"><p>Gets the default filename extension for the current export format.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public abstract string DefaultExtension { get; }</code></pre>
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  <pre><code class="lang-vbnet hljs">Public MustOverride ReadOnly Property DefaultExtension As String</code></pre>
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