Changing the default applications that opens when opening a file in Mac OS X is a definite must know, and can save you time as well as a headache.
Maybe you’ve downloaded a new app that you want to set as the default, or opening a picture could default to an app that takes a long time to load, such as Photoshop.
File system formats available in Disk Utility on Mac. Disk Utility on Mac supports several file system formats: Apple File System (APFS): The file system used by macOS 10.13 or later. Mac OS Extended: The file system used by macOS 10.12 or earlier. MS-DOS (FAT) and ExFAT: File systems that are compatible with Windows. Open Disk Utility for me. Find a file that’s the type you want to change. In this example, we want to set Photoshop to open any time a JPEG file is double-clicked. Right click on your file, and then select Get Info (or. Default Folder X for MAC – This app was created by St. Clair Software and updated into the last version at May, 16th 2019. Download Default Folder X 5.3.7 for Mac from Apps4MAC.com. 100% Safe and Secure Make your Open and Save dialogs work as quickly as you do.
For this example I’ll change default video player from QuickTime to MPlayerX. Unfortunately there is no way to just set MPlayerX to just be the default player for all video files and their respective extensions. It has to be done, extension by extension.
First thing you’re going to want to do is find a file that has the extension that you want to change the default application for.
All you need to do to change the default application is:
Now a choice, do you want to change the file association for just this file, or do you want to change the file association for all files with this extensions?
You may be thinking that the above is tedious, and truthfully it is. I’d like to see a better way of managing the default application, however until then here are some:
More Tips:
By default on Mac common filename extensions are hidden in Finder. To show all filename extensions:
Even after you’ve changed the default application that opens you can still override the setting and choose another app.
Your desired app not listed?
Find a new (or better) application by file extension.
Not all applications require these methods.
Certain actions that you perform on your Mac will cause default apps to open. For example, clicking a document may open Pages. But what if you want Microsoft Word to open instead? You can also set your default web browser and email reader.
Here's how!
Click the dropdown and choose an app.
Source: iMore
Click Continue when the Finder asks you if you're sure.
Source: iMore
Now any time you open a file with that extension, the Finder will automatically open it with the app you've selected.
Click the web browser you'd like to use as the default.
Source: iMore
Mail is likely the default email app on your Mac, but just in case you have others downloaded, you can set the default reader. Here's how:
Click the app you'd like to set as the default.
Source: iMore
Let us know in the comments below.
Updated February 2020: Updated for macOS Catalina!
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