How to download files uploaded in form.

Hi Steph,
in you video “create post and display result”
you had a code to show uploaded image within a post in custom display….
<img src=”[postimage size=thumbnail]” alt=”[451]“class=”alignleft”/>

is there a similar code for uploaded file (xls,pdf,ppt)  to be downloaded by simply clicking it’s thumbnail/icon on the post.

thank, sorry for being a noobie on HTML.