In order to save a project you need to click theor button in the File dropdown menu. To open a project, you need to click from the same menu.
After you click "Project", a new window will pop-up. Here you can browse, add description, rename and delete projects. Double click on the window name to maximize / minimize.
Existing folders
In this section you can look through all the existing folders.
When working on a shared project, it is possible that some users sharing the same folder will make changes in some items (recoded question/user output style/user-defined question). DIVA gives you a choice - you can either open the project with updated or original items' definitions.