The program allows one to perform the following tasks: -Reads X!Tandem xml results files -Reads MASCOT dat results files -Reads TPP pepXML results files -Reads PSI mzIdentML results files -Run X!Tandem analyzes through a graphical user interface -Implements various filters based on statistical values -Powerful original grouping algorithm to filter redundancy -Phosphopeptide mode to handle phosphoproteomics datasets -Edit, search and sort the data graphically -XIC chromatogram browser (eXtracted Ion Current) -Comparisons of theoretical isotope patterns to measured MS1 XIC areas -Export data directly to Microsoft Office 2010 and LibreOffice (ods export) -Handle huge datasets very quickly -Perform peptide quantification through MassChroQml export