"My question is am I entiled to request my file with all the details of the case from this solicitor in order to have another solicitor act on my behalf?"
Yes. As I recall though from some of your earlier posts, this was quite a complicated situation.saga but the essence of it was that your solicitor did not want to do what you asked. Now, it would be better if they just came straight out and said that rather than ducking you the whole time. But, equally, if they won't do it you are entitled to either do it yourself or get someone else to do it.
Why do you stick with this solicitor if you are so unhappy with them?
mf