How to Change a File Type's Default App in macOS

Discussion in 'Mac Blog Discussion' started by MacRumors, Jun 19, 2018.

  1. MacRumors macrumors bot

    MacRumors

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    #1
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    Each document that you have on your Mac is associated with a default application which macOS uses to open the file whenever you double-click on its icon in Finder.

    Sometimes you may have a legitimate reason for changing which app your Mac automatically launches when you open a common file type - when a newly installed app assumes control of it, or when you want to open AVI video files in VLC instead of QuickTime, for instance. The following steps show you how to do just that.

    1. In a Finder window, right-click (or Ctrl-click) the file whose default launch app you want to change.
      From the contextual menu, select Open With -> Other....
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      A new navigation window will appear for you to select an alternative app to open the selected file. In our example, we're selecting the VLC media player app.
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      Tick the checkbox next to Always Open With to ensure your selection applies in future to all files with the same extension (AVI files, in our case). If you don't see the checkbox, click the Options button at the lower left of the window and it should appear.
      Click Open.
    If the app that you want to use to open the file type is greyed out, it's because macOS doesn't think there's a valid association between the two. In most cases this is correct, but you can still override it by changing the Recommended Applications view to All Applications using the Enable: dropdown menu.

    There's another way you can change a file type's associated app in macOS: Right-click (or Ctrl-click) on the file in a Finder window and select Get Info.

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    In the information dialog that appears, you should see the Open with: section immediately below the Comments: section (click the chevron buttons to expand individual sections). Select Other... in the drop-down menu of apps to select one not already in the list, and then click Change All... to apply the association to all files with the same extension.

    Article Link: How to Change a File Type's Default App in macOS
     
  2. Nicksd84 macrumors 6502

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  3. danckwerts macrumors regular

    danckwerts

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    #3
    Is there really anyone who didn't know this already?
     
  4. Centris 650 macrumors 6502a

    Centris 650

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    #4
    There’s always a newbie.
     
  5. fermat-au macrumors 6502

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    #5
    Easy, if you have an iPhone switch to Android, if you have an iPad switch to Windows 10.
     
  6. H3LL5P4WN macrumors 65816

    H3LL5P4WN

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    #6
    Why would you downgrade?
     
  7. JosephAW macrumors 68000

    JosephAW

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    #7
    Does this resolve the problem in HS where you open an image and it opens in grab instead of preview? Seems to ignore this feature.
     
  8. dorsal macrumors regular

    Joined:
    Aug 20, 2002
    #8
    When I make this change for Photoshop CC 2018 docs, the change doesn't "stick" and reverts back to the oldest version of PS I have.
     
  9. nvmls macrumors 6502

    nvmls

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    #9
    Funny you say MR, although these tips are appreciated, this particular functionality has been bugged for decades.
     
  10. T Coma macrumors regular

    T Coma

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    People's Republic of Chicago
    #10
    Kind of a douchey way to think about it. OSX is loaded with redundant commands, some more complicated than others. I'm still "discovering" alternate and easier commands 8 years into OSX.

    Semi-related: I couldn't keep the file associations from changing on their own until I stopped using Firefox a few months ago. Haven't had a hiccup since.
     
  11. fairuz macrumors 65816

    fairuz

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    San Francisco, USA
    #11
    The equivalent is when you press the share button to open something in another app, in which case it gives you the list.
    --- Post Merged, Jun 19, 2018 ---
    There's always that one app that has the audacity to change itself to the default for a ton of common extensions like mp4 and jpeg. macOS should really ask first before overriding those.
     
  12. C DM macrumors Westmere

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    Oct 17, 2011
    #12
    Plenty of people don't know about plenty of things that plenty others know about.
     
  13. philosopherdog macrumors 6502a

    philosopherdog

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    #13
    Doesn’t always stick. One of those long standing MacOS glitches.
     
  14. LovingTeddy macrumors 65816

    LovingTeddy

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    Canada
    #14
    I made the the switch and never regreted once. It is nice to have a phone that can be made personal. Both Android and Windows 10 never failed once. Love both
     
  15. Nicksd84 macrumors 6502

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    #15
    That’s not the same, but a workaround
     
  16. marvin_h macrumors newbie

    marvin_h

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    Aug 6, 2015
    #16
    I don’t know about “decades” but yes it is buggy as hell.
    --- Post Merged, Jun 21, 2018 ---
    Sad but true. In fact, for things like mp3 files, I’ve never gotten it to work right.
    --- Post Merged, Jun 21, 2018 ---

    I’m sure that somehow someone thinks that’s a feature. But it sure feels like a bug.
     
  17. Gravydog316 macrumors regular

    Gravydog316

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    May 17, 2016
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    Saskatchewan, Canada
    #17
    With High Sierra, I tried changing my default to open images from Preview app to Graphic Converter, but I tried choosing "change all," & it always goes back to the Preview app... buggy with these last few High Sierra beta version.
    --- Post Merged, Jun 22, 2018 ---
    you change what app opens the files
    --- Post Merged, Jun 22, 2018 ---
    It's always worked for me, except with the new High Sierra to open my image files, it reverts to Preview app (haven't tried with other apps/files, though.
    File a bug report.
     

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