Command Prompt and Windows PowerShell are also simple and built-in options covered in this post for this purpose. We have already seen how to open a file or folder using Command Prompt or PowerShell.

There are several ways you can bring up or open CMD or launch Command Prompt in Windows, via Win+X Menu, Task Manager, Cortana, Explorer, etc.

The "open" program is specific to OS X and lets you basically drag and drop a file with the -a command onto an application. This way it overrides the per-user OBJ open-with settings.

If you want to execute a task from the command line in Windows, you first have to open Command Prompt. Here are 11 ways to do that.