Change the Default Application a File Opens With on Your Mac

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Open with what application?

One of the nice things about the Mac is that when you double click on a file, it automatically opens in a default application. For example, double clicking on a Microsoft Word file should open that document in Word. Sometimes, however, the default setting isn't very helpful. Perhaps every JPG photo you double click is opening in Photoshop when you just want to preview it. Fortunately, it's easy to change your file associations in Mac OS X, if you follow these steps.

1. Select a file with the format you want to change (ex: an MP3, a JPG picture, an HTML file) in the Finder.

select the file in Finder

2. Right click on the file and choose “Get Info.”

Get Info


3. Change the application in the “Open with:” drop down. If you just want to change it for just this file, then stop here.

Change the Open With App

4. Click the Change All button and then choose “Continue.” This will cause all files of that type to open in the new application.

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Jennifer Kyrnin
Jennifer Kyrnin,
Jennifer Kyrnin has been building websites since 1995, and teaching others how to do it since 1997. She's written several books on the topic, and is probably working on another one right now. And she does it all on her beloved iMac and sometimes her MacBook Air.
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