In recent years, new multi-dimensional spectroscopy techniques like resonant inelastic scattering methods, X-ray magnetic circular dichroism (XMCD), or time-resolved X-ray spectroscopy (TR-XAS) have become more and more popular. Fitting this type of spectra is challenging because to get accurate results, and the user must simultaneously fit the spectra in a multidimensional space. This is also known as global fitting and is supported by the primary usage of SpectraFit.