If i am working on a project, and i Crete a new sequence inside it. Now after few hours of work my sequence by mistake got canceled by me. is it in the project file in premiere cc?
what you mean by "canceled" do you mean you closed the sequence by click on the "x" icon, if yes then you can open it again from the project panel. Project panel store all the project media & sequences.
Closed sequences can be re-opened.
Deleted sequences can be Undone, if you haven't yet closed the project or gone beyond the Undo levels.