How to Set the Default Program to Open a Certain Type of File in Mac OS X

You may want to use the apps you like to open files instead of the built-in apps on Mac, and set a new default app to open the files at this time. If you don't know how to set Mac app as default for specific file types, this guide will show you how to set it up.

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Part 1. How to Change The Default App for Specific File Only

Step 1. Find the specific file you want to change default app for, and then Right–click the file you need.

Step 2. Press the "Alt" key on your keyboard, and then make the "Open with" option become "Always Open Up".

Step 3. Choose the app you want to use to open the file.

This way is applied for users to change default app for a specific file on Mac. If you want to change the default app for all files of that same type, please read on part 2.

Part 2. How to Change Default Mac App for All File Types

Step 1. Right-click on a file you would like to change the default app to open for.

Step 2. Click on Get Info.

Step 3. Locate and click on the Open with and choose the app you want to use as the default from drop-down menu.

Step 4. Click on Change All button, and click on the Continue from the pop-up window.

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The Bottom Line

If you want to make your Mac run faster than before, you can use a good program like MacClean to do some cleaning on your Mac for you. If you still have any question on your mind, please contact our support team . If this guide is helpful, please share it with your friends and family.