Document Collection Contents The document collection contains documentation files, where available, for this bundle. All document files will have an accompanying label file to describe content and structure. Label files have the same name as the main document file, with an extension of ".xml". data_description.pdfa.pdf - ALMA Ceres Data Bundle Description - Description of the data included in the ALMA Ceres data bundle. bundle_description.txt - Bundle description for the gbo.ast-ceres.alma.images-spectra bundle - A document describing the content and structure of the bundle. ref.txt - Reference List - The reference list for the bundle. observatory.eso-chajnantor.txt - Description document for European Southern Observatory - Chajnantor - Description document for European Southern Observatory - Chajnantor eso-chajnantor.alma.txt - Description for Atacama Millimeter/submillimeter Array (ALMA) at European Southern Observatory - Chajnantor - Description for Atacama Millimeter/submillimeter Array (ALMA) at European Southern Observatory - Chajnantor eso-chajnantor.alma.alma_radio_receiver.txt - Description Document for ALMA Radio Receivers - A description of the ALMA Radio Receivers instrument AA_Document_Index.txt - Document Index - The file you are reading. collection_gbo.ast-ceres.alma.images-spectra_document_inventory.csv - Collection Inventory - An inventory of document products in this collection.