I downloaded ingen2 and altova, but ingen2 seems the easier one for a technology newbie like myself.
Are you familiar with XML? If you aren't, I'd be cautious as far as translating XML files is concerned.
The readme file iin ingen2 contains the following instruction:
Open a DOS prompt, and change current directory to the folder where these files are.
How can I "open a DOS prompt"? The rest of the instructions I get them but I don't know how to do this!
You haven't told us which operating system you use...
In most versions of Windows, Start - Run... - cmd opens a DOS shell. The change directory command is cd, followed by the directory.