Click the Enable: menu and select All Applications.If the App you want to use to open the file with is ‘greyed out’ and you can’t select it – no problem. When you find the App, select it by clicking on it once. Find the App by first selecting Applications and then scroll through the list. A pop-up window will appear allowing you to pick the program you want to open this type of file with.If the App you want to open this file with is not listed – don’t worry, just click the Other… item from the menu. Congrats, you also get to skip down to step #7. If the App you want to open this type of file with from now on is listed, select it.Locate the Open with: section and expand it (if necessary) by clicking the small ‘triangle’ icon. A window will appear with all kinds of info about that file.Right-click the file (or hold down the control button on your keyboard and then click on the file) and select Get Info from the context menu. Locate a file of the type you want to switch. That doesn’t mean you need to do the same, this process is the identical no matter what type of file you’re dealing with. M3U files (commonly used as playlists) from opening in iTunes to the media player VLC. For the sake of this guide we’re going to switch.The process to switch default Apps is super-fast and easy to do, and easy to change again later any time you want. Open media files (MP3, MP4, AVI etc.) in VLC instead of iTunes or Quicktime.Open PDF files with Preview instead of Adobe Acrobat.Some common “I’d rather use this App when I open this kind of file” scenarios are: You know how when you double-click a PNG file it opens in Preview? What if you want it to open in Photoshop by default instead? This guide shows you how to to just that – change the default App that’s used when you open a file. This detailed guide will take you step by step through the process of changing the ‘default programs’ on your Mac.

Make vlc default mac