To package and share project files, you can export all project files to a zip file. For example, you can share a zipped project with people who do not have access to the connected source control tool.
With a project loaded, on the Simulink Project tab, select Archive.
Use the file browser and save the file. By default, the file myprojectname.zip is created in the current working folder.
The archive command exports a complete project.
To share projects with other users, it can be useful to create a model dependencies manifest report showing required toolboxes for your top model. You can save and share that information by adding the manifest report to the project. See Generate Manifests.