Find all the unused files In Drupal 7 (I also have the Media module installed), there is a functionality in 
/admin/content/file



that lists all files being uploaded. If you click on a single file's "Usage" link, you can see exactly how many times that file has been used in the whole site, I would like to order that table by the column "Usage" to see files that haven't been used and then delete them.

Unfortunately it's not possible to order that column. Is there another way to achieve this? Is Views Bulk Operations the best available option?
It maybe isn't exactly what you are after but I found the answer at Find orphaned unused files and images to be most helpful.  Particularly the comment by @Marcos Buarque mentioning comment 7427898 which mentions a nice query to tidy up using the file_delete() function built into D7