What is a .HDD file?
An .HDD file is a type of computer file used by a program called Parallels Desktop for Mac. This program allows you to run a virtual computer, or "virtual machine," on your Mac computer. Think of it as having a computer within your computer. The .HDD file acts like a virtual hard drive for this inner computer. It holds all the information that a real hard drive would, such as the operating system, programs, and files you have on the virtual machine.
When you start up a virtual machine using Parallels Desktop for Mac, the program looks for the .HDD file because it contains everything needed to run the virtual machine. It's like turning on a real computer; the computer needs to read the hard drive to start up and work properly. In this case, Parallels Desktop reads the .HDD file to get the virtual machine running.
To open an .HDD file, you would need to use Parallels Desktop for Mac. As of the latest information, Parallels Desktop for Mac 19 is a version of the software that can open this type of file. You don't open an .HDD file like a document or picture file. Instead, you run Parallels Desktop for Mac, and it uses the .HDD file to start and run your virtual machine.
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