This training will focus on the processing of raw data obtained via either Gas Chromatography- (GC) or Liquid Chromatography- (LC) mass spectrometry (MS). In addition, based on the comparative analysis between two sample sets (e.g. control vs treatment), the subsequent identification of differential metabolites will be introduced. Afterwards, the trainee should be able to perform independently a comparative analysis of raw metabolome data and to pinpoint the well-known metabolites in the chromatogram.