A pop-up window will appear allowing you to pick the program you want to open this type of file with. Find the App by first selecting Applications and then scroll through the list. When you find the App, select it by clicking on it once. Now skip down to step #6. Start quickly with the most recent versions of Word, Excel, PowerPoint, Outlook, OneNote and OneDrive —combining the familiarity of Office and the unique Mac features you love. Be more productive Find the feature you need fast and create documents more easily with built-in automated design and research tools.

  1. Mac Open Default Programs
  2. Mac Default Programs
  3. Change Mac Default Programs

How to change your default web browser

Mac Open Default Programs

  1. Make sure that the other web browser is installed.
  2. Choose Apple menu  > System Preferences, then click General.
  3. Choose a web browser from the ”Default web browser” menu.

Mac Default Programs

How to change your default email app

  1. Make sure that the other email app is installed. Although you might be able to use a web browser for email (webmail), a web browser isn't an email app.
  2. Open the Mail app.
  3. Choose Mail > Preferences, then click General.
  4. Choose an email app from the ”Default email reader” menu.

You might be prompted to add an email account before you can change the setting in Mail. If you don't want to do that, check the preferences of the other email app. You might be able to set a default email app from there.

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Change the default web browser or email app on iPhone, iPad, or iPod touch.

Back in the pre-Mac OS X and macOS days, Apple’s System 9 and earlier relied on hidden metadata to associate files with apps. File extensions, those bits of text that follow a period at the end of a file (like .doc, .html, or .jpg) were optional, although often used for compatibility with other platforms and with web. On the web, file extensions are effectively mandatory so a browser knows how to handle a file appropriately.


Macworld reader Rick would like to monkey with that. He has a number of HTML templates, but to differentiate them from his production .html files, he puts the suffix .tt on them instead. Browsers don’t recognize these files by default. There’s a way to force an association between a file type and an application, but that application still has to recognize the extension.

If you have an extension that’s simply not mapping correctly, you can follow these steps:

  1. Select the file in the Finder and choose File > Get Info.
  2. In the Open With section, if there’s an appropriate app in the list, you can select it and click Change All and confirm, and now all files with that extension open in that app. You can stop here. But if the app you want doesn’t appear in the list, select Other.
  3. Choose the app from the list that shows. In the Enable pop-up menu, you can choose All Applications, and it will let you pick any app. Check the Always Open With box to force an association.
  4. Click Add.

If you’re using, for example, .tt as your HTML template extensions like Rick, you could go through steps 1 to 4, and pick Safari as the app to open .tt files. The trouble is that Safari doesn’t know that a .tt file contains HTML.

Card life free download. Even so, I hope you have fun perspiring. With thanks to Thomas Edison, life is 1% inspiration and 99% perspiration.

In the olden days, when everything to do with the web was more in a state of flux, you could modify and add content mappings, usually in the form used by MIME, a decades-old method of associating actions and formats with file extensions. (You’ll see MIME mentioned explicitly in email programs’ headers. Some kinds of documents also embed MIME information into their headers, so software can read a few characters of the file to figure out what it is.)

Unfortunately, there’s no way I can find to change file associations in Safari or Chrome. Firefox exposes more of this mapping information, but you can’t add new file types.

Might I suggest instead using macOS’s Tags feature? In the Finder, select Finder > Preferences and click the Tags icon. You can add an HTML Templates tag and assign that to all your templates. Then you can use a Smart Folder to gather them together, or use various Arrange By/Sort By options to group by tags.

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Mac set default programs

Change Mac Default Programs

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