Every time I change a file type in Finder, I'm forced to confirm that I actually want to change the file extension.

change File Extension confirmation dialog

Are you sure you want to change the extension from ".old" to ".new"?

If you make this change, your document may open in a different application.

Keep .old Use .new

How can I stop going through this confirmation step?


1 Answer 1


Finder > Preferences > Advanced

Show warning before changing an extension

enter image description here

Uncheck this option to disable the warning confirmation dialog when changing or renaming a file extension in the macOS Finder.

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