Iron Mike is absolutely right, but the real problem is that ChromaSurf does not directly support the commonly used Spectros from Jeti and Colorimetry Research.
Therefore a project was started in 2016/2017 to integrate the spectros of Jeti.
Unfortunately, Tom Nelson (Office Manager and Sr. Software Eng.) left Klein Instruments at the beginning of November 2017 and Chromasurf was obviously no longer developed.
S/W: LightSpace PRO, Calman 5, HCFR, Colorfacts
V/P: Lumagen Radiance Pro, DVDO AVlab TPG
Meters: JETI Spectraval 1501, Klein K-10A, I1Pro2, I1D3, Spyder 5 & X