This file contains the Relax NG (RNG) schema generated from the ODD of the FrutosDigital , a scholarly digital edition in TEI-XML of Frutos de mi tierra by Tomás Carrasquilla. The schema formally defines the validation rules that the project’s TEI documents must follow, including permitted elements, attributes, structural constraints, and levels of editorial annotation. The RNG enables automatic validation of the TEI files produced, ensuring encoding consistency, data model coherence, and workflow reproducibility. This resource is part of the project’s technical infrastructure and supports interoperability, preservation, and long-term reuse of the materials within Digital Humanities and scholarly digital editing environments.