Sometimes you may want to use as a default feed RRS, do you go to the Edit HTML, then look for the code red below :
<b:includable id="feedLinksBody" var="links">
<div class="feed-links">
<data:feedLinksMsg/>
<b:loop values="data:links" var="f">
<a class="feed-link" expr:href="data:f.url" expr:type="data:f.mimeType" target="_blank"><data:f.name/> (<data:f.feedType/>)</a>
</b:loop>
</div>
</b:includable>
Replace the red code with the code below :
<a class="feed-link" expr:href="data:f.url + "?alt=rss""
type="application/rss+xml" target="_blank"><data:f.name/> (<data:f.feedType/>)</a>
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<b:includable id="feedLinksBody" var="links">
<div class="feed-links">
<data:feedLinksMsg/>
<b:loop values="data:links" var="f">
<a class="feed-link" expr:href="data:f.url" expr:type="data:f.mimeType" target="_blank"><data:f.name/> (<data:f.feedType/>)</a>
</b:loop>
</div>
</b:includable>
Replace the red code with the code below :
<a class="feed-link" expr:href="data:f.url + "?alt=rss""
type="application/rss+xml" target="_blank"><data:f.name/> (<data:f.feedType/>)</a>