HELP- Captivate Uploaded my PowerPoint into an existing project instead of creating a new project.

I opened captivate and clicked “New Project” and then “Project from MS Powerpoint” and instead of creating a new project it uploaded over an existing project. I did not realize this until I made several changes and clicked save. Can anyone help me restore my other project that this one pulled into? I have many hours of work into this project and would hate to see it lost.