Regarding setting up Octave using Virtual Machines

I am trying build Octave on my system using the documentation shared here. The problem is in this section:

I am unable to understand how can I convert the text file into .vmx. If I am doing something wrong, let me know thanks.

only change the extension name.

If you’re in Linux, you only need change the file name with mv command in your terminal as

mv file.txt file.vmx

if you’re in Windows, enable viewing extensions and then change the filename with rename option clicking the rigth mouse button over the file.