NeXolve can perform ultraviolet, visible, and near-infrared transmission, reflection, and absorption measurements of film samples using a Perkin Elmer Lambda 950 UV/Vis/NIR spectrometer coupled with a Spectralon coated integrating sphere. Spectroscopic measurements can also be performed on liquid samples using quartz cuvettes and a standard optics configuration. Calculation of air mass zero or air mass 1.5 solar transmittance, reflectance, or absorptance values can also be performed from the measured data for film samples. Spectra of samples in many forms, including liquids, solids, or films, may be collected in the spectral range from 250 – 2500 nm (and higher in some cases).