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I work a lot with files and data on macOS. Each time you change the file extension, you have to additionally confirm the actions with a dialog box, can it be somehow removed?

Disabling this dialog box is recommended only for advanced users, so as not to accidentally damage the necessary files or data.

This can be done in two ways.

How to disable the dialog box in system preferences

Open the Finder app and navigate to settings from the menu bar or by using the keyboard shortcut “ Command + , “.

In the Add- ons section , uncheck the Warn me when changing an extension check box .

After that, when you change the extension of most file types, you will no longer see the annoying dialog box.

How to disable the dialog box through the Terminal

To completely disable this dialog box for absolutely all types of files, you need to use the Terminal utility .

Enter the following command:

defaults write com.apple.finder FXEnableExtensionChangeWarning -bool false

After that, you need to restart Finder. You can do this with the “ killall Finder ” command, or simply restart your Mac.

So you will no longer see an additional dialog when changing extensions for all files.

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