Global setting to hide file extensions in macOS

Can you be more specific about what file extensions do and do not appear to work?

The reason I ask is that I think 'Show all filename extensions' in the Finder settings is misnamed.

It should really be 'Show common filename extensions'.

In other words, at least on my machine, toggling this does show (or hide) common filename extensions associated with specific applications.... .app, .numbers, .pages.

What it does not hide are extensions from generic file types (e.g. .txt, .html, .png) that could be associated with multiple applications.

It also seems to differentiate between files downloaded from the internet. e.g. downloaded.pdf -> does not hide, but a Pages document exported as PDF does, which indicates there's some internal metadata that it's feeding off, that is currently opaque to me.

I don't see a single, one-click option to do what you want.

Marcin_UK wrote:

how to hide file extension?

Hello guys. Im fairly new to Mac OS but Ive done my research

I can't hide file extensions.

finder - settings - advanced - and untick "show file extension it doesn't work. all the files still show extension.

Any other thing that I could do ??

Not sure why you would hide file extensions... seems vital and critical information.

Finder>Settings>Advanced....(?)

Marcin_UK wrote:

by saying file extensions I refer to .jpg .mp3 etc... I don't need to see this information it doesn't have any value to me. I know what files I have and where

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