Neville claims his ill-fated stint at Valencia was always going to be short-term.
He told the Daily Mail: "It'll never happen.
"I'm a million miles away. I suppose never is a strong word because in 10 years you might wake up and say: “I want to coach." I love football and the camaraderie but I don't want to be in that environment any more.
"Up until 15 months ago I was coach of England and 19 months ago I was coach of Valencia, so it would be impossible to say at that stage that I'm never going to be a coach, but I had turned down two or three Premier League jobs, I turned down two Championship jobs and I wasn't going to go into coaching.
"I did it because it was my business partner and I thought that the opportunity for an Englishman to manage one of the top four or five clubs in Spain was never going to happen again. It was an unbelievable opportunity and it didn't go as well as I wanted it to, but I enjoyed every minute and it taught me a lot and things I will apply to my business life. I don't regret going to Spain and I would have liked to have stayed in Valencia for 18 months, but I wouldn't have continued in coaching."