The dmg file is a compressed file containing software, so once you have loaded the software, the dmg file has served its purpose.Īnd it will only be taking up additional space. Yes, you can delete a dmg file as long as you have already extracted the software. dmg files are and if you can delete them Read on to get a clear guide on the specifics of what these. dmg extension, and you aren’t quite sure you should delete it. While clearing out your storage, you must have come across a file with a. One of the best ways to manage storage is to delete any repetitive files and media to use the space for something else. You need to be wise about how you manage space on your storage media to maximize its use.