Save aspects of the current state to a command file.
Syntax: save <option> <filename>
If no <filename> is given, then the file savexspec.xcm is created. If you don't give the extension to the file name the default is .xcm. The values of <option> allowed are model, files, and all. The model option writes out commands to recreate the current model and parameter values; the files option writes out commands to read-in the current spectra, and the all option does both of the above. The default option is model. To recover the saved context use the command
XSPEC12> save model fname
// Write out model commands to the file fname.xcm
// Same as above, but save into file savexspec.xcm.
XSPEC12> save files fname
// Write out data file commands.