Database Manager provides a number of convenient ways for organizing and processing mass spectra, chemical structures and libraries. A user-friendly spreadsheet format is provided for data handling. Advanced database query and search features give the user instant access to the information needed for rapid compound identification. User libraries containing spectra, MSⁿ spectral trees, chromatograms, chemical structures and extensive compound characteristics can be created at the click of a mouse. This module supports data exchange with Microsoft Excel.