Can I delete large files someone shared with me, so that they don't take up Dropbox/disk space?

Thanks for posting on our forum today, @Lindsay8!

To clarify, are all these videos located within a shared folder that someone else shared with your Dropbox account? 

Also, do you want to just remove them from your computer, so that they don’t take up hard drive space, or delete them from your Dropbox account altogether? 

If the former, you can use selective sync, which will remove your folder(s) from your desktop app, but the files will still exist on your Dropbox account online. 

To delete the files from Dropbox instead and remove your access from a shared folder, you’ll need to follow these steps.

Let me know if that helps.