This is very useful if your Mac has become unbootable and you only have a Windows alternative. If you're on a Windows PC, another way to burn a DMG file to a USB drive is to use TransMac. Although you will be able to open the file in Windows, please note that the setup file can not be used as an executable in this case. To view a DMG installation file on Windows 10, you will need a special application such as UUByte DMG Editor. Let’s use the UltraISO program to convert a.dmg file to an iso file. You can convert a file with a DMG extension to an ISO extension within minutes using 3rd software. You can use the programs listed below to open the file with the DMG extension DMG Extractor HFS Explorer 7-Zip How to Open DMG File on Windows 10. In this article, we will show you how to open and view DMG files on Windows machines. DMG that is meant for installing software can not be executed in Windows. The biggest difference is that while a DMG file that does not contain software installation files and can't be opened on a Windows machine in default. However, there are some significant differences. In many ways, it is similar to the ISO format used in the Windows environment. dmg is a file exrension specially for Mac disk image and many apps use it as setup file of installation.