has topic Textual format Experiment annotation format MetaboLights MAF 1.26 Metabolite Annotation File format MetaboLights MAF (Metabolite Annotation File) is a tab-separated file format used to report metabolites identified or annotated in a metabolomics study, including compound identifiers, chemical structure representations, mass-to-charge ratios, retention times, and per-sample quantitative measurements. tsv The MAF format is used by the MetaboLights repository as a companion to ISA-Tab metadata, and follows the Metabolomics Standards Initiative reporting guidelines. Metabolomics