Andy Brudtkuhl

This plugin enqueues a simple jQuery script that looks for any anchor tag that has an href property to something with a file extension of 1-5 characters and makes it open in a new window or tab.
<a href="https://gist.github.com/abrudtkuhl/94a6f58d1f76439fa6fb" rel="nofollow ugc">see script here</a>
This means any link to a .pdf, .txt, .ppt, .doc, .xls, .xlst, etc will automatically have the property ‘target=”_blank”‘ added to it so it opens in a new window or browser tab.

Open Files In New Window or Tab

Makes any link to a file open in a new tab by adding 'target="_blank"' to the link.

Jason LeMahieu (MadtownLems)

University of Wisconsin - Cooperative Extension

This plugin adds a column to the Media Library page that displays the total space used by each media item. For images, this includes the original image as well as any other generated sizes.
This plugin is particularly handy for networks where site owners have a limited space quota.
Additionally, sorting your Media Library by file size is actually a great way to identify duplicate media items.

Media File Sizes

I REALLY needed this, to be able to identify the largest images, and I'm glad to see it still works in April of 2018

Still Works

Easily see how much disk space (in KB, MB, & a percentage of your quota) each of your uploaded files takes up.

Open Files In New Window or Tab vs Media File Sizes