File Extensions

[Kitarii]

I've been looking all over, and no one seems to have an answer.
I guess this means nobody knows, but I might as well ask, right?
Is there any way to instantly set all files to hide their extentions?
I know I can do them one by one, I know I can set them all to show.

Also hi, yes I am new.
Thanks in advance for any help.

 

[KingYaba]

Finder preferences. In your case, uncheck the box. In my experience, some file extensions will continue to show regardless.