# How to reveal files in another application

By default, when you reveal a file it will be shown in Finder. If you want to, you can use another application to reveal files. You can do so by setting the `customFileRevealApplication` key in the GrandPerspective user defaults to the name of the application that you want to use instead. This can be done in the Terminal by entering the following: `defaults write net.sourceforge.grandperspectiv customFileRevealApplication -string ApplicationName`. Please make sure that GrandPerspective is not running when you do this, otherwise there is a chance that the change will be undone by the application.