#### MarsEdit Help | Solutions By Topic | Q&A

# Adding an Enclosure

An enclosure is an external file, such as a podcast audio file, that is referenced by a blog post. The enclosure does not normally appear in the content of your post, but is detected by applications, such as iTunes, that read an RSS feed of your blog’s content. Check with your blog system’s documentation to see if this feature is supported by your blog.

To add an enclosure to a post, choose Post > Edit Enclosure…

A sheet will appear on the post editor window. Specify the details of the file you wish to reference from the post.

The URL should point to your enclosure’s permanent location on the web. The MIME type and length of the file are important details for applications that read the enclosure from your post. MarsEdit can automatically fetch the values for these fields. If the file is already available at the specified URL, click the From URL button, otherwise click the From File button and select the file from your local disk.