An educational content presentation system and a file format for facilitating learning in that presentation system are provided. The presentation system receives an archival file, such as a ZIP file, that comprises a manifest, one or more activities, and one or more libraries. The manifest associates activities with educational content in the one or more libraries. Some or all the educational content in the library can be encrypted to facilitate digital rights management of the content or provide security in learner assessment activities. Activities can then be executed, such as by a Common Language runtime or Java virtual machine, which present the educational content in the associated libraries to facilitate student learning.