the block of code where is it in wordpress

where is this code in the wordpress, what file is this code in

<div id="widget-area" class="widget-area" role="complementary">
<aside id="text-1" class="widget widget_text"><h2 class="widget-title">Widget Title for First Text Widget</h2>
<div class="textwidget">Text within the text widget area.</div>
</aside>
<aside id="text-2" class="widget widget_text"><h2 class="widget-title">Widget Title for Second Text Widget</h2>
<div class="textwidget"><p>Text for second widget text area.</p></div>
</aside>
</div><!-- .widget-area -->

Thank you