The DMG file has several different formats, including Linux, Fat32, UFS, ProDOS, HFS, and HFS+. However, if the original DMG file was password protected by Apple, those executable applications may not work. There are also executable files that can help with this.
There may be instances where one can convert the files, but it probably needed to look for additional utilities to allow the file to be accessed from the chosen device. The DMG file extension was specifically designed for Macintosh computers, and users are likely to have a lot of trouble if trying to use them on a Windows device. Mac systems treat DMG in the same way they would treat an inserted disc, and they instantly try to open or 'run' the file. The file contains raw data that is usually both encrypted and compressed.
The DMG file is essentially a mountable disc image that shows up on your desktop when opened. All you have to do on the 2nd window is click open again (or whatever button is there on the bottom right) Don’t hit cancel, it looks like nothing is happening but it converts the file to. This is where I was stumped for a few minutes as you cannot re-click the file you are trying to convert. In most cases, the DMG file is used to give the Mac devices the ability to install different types of files and software originating from the internet. rar file you want to convert, then the Finder re-jumps up. The DMG file extension was created by Apple and is primarily used on Macintosh computers and devices.