When an analysis has been set up (or when you are in the process of creating an analysis), you need to determine how to save your document. If the analysis is intended to be used by a larger audience you probably want to save it as a library item. Once in the library your colleagues can easily access the analysis. When more than one person is going to use the analysis, you always need to make sure that any linked data sources are available to all end users. See Preparing Analyses for TIBCO Spotfire Web Clients for some useful tips.
If the analysis is to be used by a smaller number of people you could instead save it as a regular file.
If you are working with an analysis in the library and you make some changes that you do not want to save in the original file, you can use one of the Save Copy As alternatives instead.
See also:
Saving an Analysis File in the Library