Mass ID™ Software is a software developed by Varian to analyze multiply charged ions, including proteins, peptides, and oligonucleotides. The software has an “extended” mass range and can identify analytes that are far above the nominal mass range of the instrument. The software is also flexible and can be used to deconvolute complex mixtures or single components. In addition, the software supports multiple data formats and can process profile spectra from data files (.sms and .xms) or from text files. The software also works with data from both positive and negative mode collections. The software also supports spectrum preprocessing, including averaging, smoothing, spike removal, and background correction. Users can also select the number of species, type of adducts, and mass range to be included in the analysis. The software also supports convenient data reporting, including saving, exporting, or printing deconvoluted spectra.