Default file associations osx

Click 'Change All' if you want all files with this extension to be opened with the new application. A box opens warning that this will affect all files with the same extension.

Click 'Continue. A published author and professional speaker, David Weedmark has advised businesses and governments on technology, media and marketing for more than 20 years.

He has taught computer science at Algonquin College, has started three successful businesses, and has written hundreds of articles for newspapers and magazines throughout Canada and the United States. When you double-click to open a file, these tags inform OS X which application to launch. When you first start using Mac OS X, many of these associations are for the software that comes built-in or pre-installed on your hard drive, but you may have other programs installed that you would prefer to automatically open for certain files.

While you could Ctrl-Click each file and select Open With, in the long run it is easier to change the default file associations. Open a Finder window containing file types whose default association you wish to change. In this example, we have a selection of document files:. In this example, we can see that the default application for opening a. Go to the Open With section and choose a different application from the drop-down menu:.

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