Application Launcher for Drive is a Chrome extension developed by Google that allows users to open Drive files directly from their browser in compatible applications installed on their computer. This extension is specially designed for those who need to access their files quickly and efficiently.

To use this extension, users need to install Google Drive for Mac/PC. Once the installation is complete, users can right-click on the file from Google Drive and select "Open with" to see a list of applications on their computer that can open it. With this extension, users can easily access their files from anywhere and open them in their preferred application without any hassle.