In the latest versions of IntelliJ IDEA it seems that it isn\'t possible to import code style files like intellij-java-google-style.xml.
I would like use the Google Java
This problem can be solve installing the google-java-format Plugin.
Open plugins window (CTRL+Shift+A): plugins
Click on browse repositories.
Search for google-java-format
Install the plugin.
Restart the IDE.
Enable the plugin executing the action (Ctrl+Shift+A): Reformat with google-java-format
Additional notes from the google-java-format README
The plugin will be disabled by default. To enable it in the current project, go to File→Settings...→google-java-format Settings (or IntelliJ IDEA→Preferences...→Other Settings→google-java-format Settings on macOS) and check the Enable google-java-format checkbox. (A notification will be presented when you first open a project offering to do this for you.)
To enable it by default in new projects, use File→Other Settings→Default Settings....