convert Visual C++ SDK GPIB SM445 Visual Basic DK EX EZUSB AD131 VC# Matlab SM304 CM Mono monochroamtor sdf to txt 32bit spectrometer. SM32Pro NI PCI SM240 VC++ monochromator SM303N SM440 Detector AD SM445N AD111 300 SM32ProForSM301 SM245 1/4m SM301 Demo 111 SM242 Labview Executable 1/2m DK480 SMProMX 1/8m Python Filter Wheel SM400 Source DK240 SM32Pro RS 232 SM245N CyUSB3 SM303 SM301EX SM301-EX 131 SM642N USB SM sdf AB CM110 SM200 SM442 system file upgrade spectrometer SM642 AB300 CM112 DK242