Here is how you can Open a project saved on your local computer:
1. Click Open Project.
2. Click Browse Disk and go to your Explaindio Elements software installation directory.
For Windows the default installation directory is C:\Program Files (x86)\Explaindio Elements
For Mac the default installation directory is /Applications/Explaindio Elements.app/Contents/Resources
3. Locate the projects folder inside your installation directory.
4. (Don't get into the _Assets folders) Scroll down and you will find your project files. Select and Open the project files that which has an extension of .elements or .elements_zip.
Here is a step by step tutorial video on How To Open A Project File From Local Computer.