How To Set Default App For Opening A File In Mac

1. How To Set Default App For Opening Jpg Files
2. Set Default App For All Users Windows 10
3. Mac Os Default App

Going one step beyond a single file association, you can change the default app of all of the chosen files format by being at the same Get Info window, selecting then app, then click on the “Change All” button. Nov 20, 2018  A default program is the program that Windows uses when you open a particular type of file, such as a music file, an image, or a webpage. For example, if you have more than one web browser installed on your computer, you can choose one of them to be the default browser.

By default, the Mac OS X identifies files without file extension as Unix Executable File. But often these can also be found as simple text files with instructions, version history, frequently asked questions, settings etc. and called like README, READ-ME, INFO, SETTINGS, OPTIONS etc.

Mac OS X tries to open files without extension with the Terminal app, which often causes an error message that the file doesn't contain any executable data.

If you want to change default application with Finder → Get Info option, you will only change the app for the current file. If you click on Change All... button you will get an error message.

However, there is a way how you can change default app for all files with no file extension found on your Mac.

Use RCDefaultApp to change default software for files without file extension

is free file association management tool for Mac that is installed as Preference Pane to System Preferences.

Default Apps main window

DownloadRCDefaultApp → Open the DMG archive → double click on RCDefaultApp.prefPane file.

OpenSystem Preferences → Section Other → Click onDefault Apps icon.

Mac System Preferences

Click onUTIs (Uniform Type Identifiers) tab.

Uniform Type Identifiers are used by OS X to identify common system objects, like documents, image file types, folders etc.

Scroll down the UTIs list and find public.unix-executable key and change Default Application to for example TextEdit.app.

Default Apps UTIs settings

How To Set Default App For Opening Jpg Files

Now files with no file extension will be opened in the TextEdit as a simple text files.

This solution changes the default app also for Unix Executable File, or other file types without file extension that will caused unexpected problems in system.

If you want to change an icon for files without file extension. Right click on a file → Get Info.

Drag a new icon archive with *.icns file extension by a mouse and drop it on default icon in upper left corner in Get Info panel.

Set Default App For All Users Windows 10

Change default icon

Mac Os Default App

If you want to set the default icon.Right click on file → Get Info. Click on icon in upper left corner and press the backspace key.