Document Basics
Make new document
One of the popular features of mMass is the ability to open a blank document [File → New Document] and create peaklist manually. This feature is particularly useful in those cases where raw data is unavailable, and the user has only a spectrum image or printed list of labelled peaks. Such is often the situation in laboratories that do not have their own instruments and have to send their samples to other laboratories. This feature gives such laboratories the chance to analyse the data themselves. Once the peaklist is prepared, all interpretation tools can be used.
Open existing document
To open existing document choose Open… [File → Open…] . You can also choose from Recent Files [File → Recent Files] or drag your file to application window (Windows version only).
Save current document
To save current document to mMass format choose Save [File → Save] or Save As… [File → Save As…]. If you want to save your data to different format choose one of the Export options [File → Export].
Print spectrum or sample report
There are to options in mMass to print your data. Choose Print Spectrum [File → Print → Spectrum] to print current spectrum view or Print Report [File → Print → Report]
to print sample report containing annotated peaklist and some additional information about sample measurement and peptide/protein sequence as well.
Export data or image
From any opened document you can easily export data or spectrum image to several formats.
To export spectrum data choose Spectrum Data… [File → Export → Spectrum Data…]. This option saves current spectrum points to simple ASCII file containing m/z and intensity pairs.
To export spectrum image choose Spectrum Image… [File → Export → Spectrum Image…]. This option saves current spectrum view to PNG image. User can specify the image size in pixels.
To export peaklist data choose Peaklist… [File → Export → Peaklist…]. This option saves current peaklist to simple ASCII file containing m/z, intensity and annotations. In application preferences you can specify which values to export and ASCII delimiter as well.
Document information
Dialog window Document Information [File → Information] allows you to add additional notes and it shows some basic information about current document. You can also specify measurement details like Date, Operator name, Contact, Institution and Instrument type. On Notes tab, there is a space for some notes. These information, however, are saved in mMass document format only.

Document information dialog.