The third required file to open a project. It follow the same definition as the java manifest file.

It cannot be renamed or moved. It needs to be META-INF/MANIFEST.MF.

This is a simple text file that lists the files used in the project including the project registry and graph file.

A simple example of its content is:

Name: project.gs
Content-Type: application/x-grogra-registry+xml

Name: Model.rgg
Content-Type: text/x-grogra-rgg; charset=UTF-8

Name: graph.xml
Content-Type: application/x-grogra-graph+xml

Each file is mapped with its name and a MimeType (i.e. the explicit type of the file. Several files could have the same extension but be processed differently).