In My Mac book pro I was working on a project file and since I didn't open it for a month it got lost now, need my project file now immediately. Kindly let me know what I can do about it. Regards,

I want to go back a few steps to understand when it got out of shape in different visualizations modes, and be able to correct it or not do that step. However, the "go back" arrow is grayed out. Why...