Despite their common use, DMG files are not the easiest to open. Often, they contain installation files and are compressed, so your Windows PC will not be able to run them. If you are unable to open the file, you can re-associate it with a compatible program, such as 7-ZIP. Once the DMG file has been re-associated with the correct application, you can now open it with ease.
Why Need And How to Open DMG Files on a Mac
To open an a.DMG file on your Mac, launch your Disk Utility app. Click the File menu and choose Open disk image. If you have the Finder application, open the Finder window and click the icon. Select “Open file” from the context menu. After this, select the DMG file and double-click it to open it. Once it has opened, you can drag it to a folder on your computer and save it there.
To associate the application with a dmg file open, click on the file’s icon. Then, enter the unlock password if you’re using a Windows computer. If you’re using a Mac, right-click the file and choose “Open with” from the context menu. Alternatively, you can open the DMG file directly from the Disk Utility. The first option is best for less advanced users.