You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Change the default app to open a file extension

Hi everyone! I tried to associate the file .dcm with Horos.app, marked Always Open With on the appropriate box, but Adobe Photoshop continues to be the default app. I'm running a MacStudio M1 Max Ventura 13.0.1. Is this a bug?

Thanks for any hint.

Mac Studio

Posted on Nov 19, 2022 5:04 AM

Reply
Question marked as Top-ranking reply

Posted on Nov 19, 2022 6:30 AM

To elaborate on what Barney said: if you want all files with that extension to open with Horos.app, do in the Finder:


a) select one such file

b) press command-I to open the Info window

c) select the application you want

d) click "Change All..."




3 replies

Change the default app to open a file extension

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.