If you need to delete an Outlook data file on a Mac, there are a few different ways to go about it. The first way is to use the Finder. Open the Finder and navigate to the folder where the Outlook data file is located. Right-click on the file and select “Delete from disk.” If you don’t have access to the Finder, you can also use the Windows command line. Open a command prompt window and type “del /F /Q ” without quotes. whichever method you choose, be sure to backup your Outlook data files in case you need them later. ..