...
It would be of best interest, to save the project at this point. Click on the "Save As.." button, , which is located on the top of the Workbench window. Save the project as "Cantilever". When you save in ANSYS a file and a folder will be created. For instance if you save as "Cantilever", a "cantilever.wbpj" file and a folder called "cantilever_files" will appear. In order to reopen the ANSYS files in the future you will need both the ".wbpj" file and the folder. If you do not have BOTH, you will not be able to access your project.