I am a beginner with Sigil and was working on a project then saved it as a .sgf file. But now when I open it, or any other saved .sgf file, the default view is the Book view and selecting split or code views results in no change. I also noticed that the file name on the top of the window title bar now displays .sgf* Regardless of what I've tried, exiting out of the app, restarting computer, I cannot get the split or code view back.
What did I do and how can this be corrected?
P.S. When importing from .txt files, which is the correct format to use - UTF-8, Unicode?
Thank you.