Class is a standard data reduction package for sub-millimeter observations. It has a number of options that allow one to quickly process large amounts of data for further use. It is part of a larger package of software prepared by the Grenoble group. For the full details of how to use Class, we refer you to the manuals that we have in the control room and in Tucson.
For an overview of how you might do a quick look of your spectral line data, we present the following cheat-sheet!