Merging of overlapped XPS spectra with CASA ( tech. Help needed ) Does anybody knows ways ( options ) to merge two ( or more ) overlapping XPS spectra onto one ( extended ). See graphical example attached. Two optional exp. recoding need to be assumed. 1. "x" scale grid in overlapping Binding Energy zone is SAME ( step and BE bins ) in spectra1 and spectra2 2. "x" scale grid in overlapping Binding Energy zone is Different ( step and/or BE bins ) in spectra1 and spectra2 Is it possible to fix that with standard CASA's calc. options or some undocumented "trics" needed ? Or that's really impossible at all ? Thank, you.