Connecting a computer to Genesys 10S Spectrophotometer
This is a long comment....
The webpage specification says that there are three USB connections.

USB Type A port for USB memory device (front panel)
USB Type B port for optional computer connectivity (rear panel)
USB Type A port for external printer (rear panel)

The printer uses the HP PCL 3.0 specification via a USB cable. You should be able to get the HP specification and emulate that to get the data. The spectrometer doesn't know what it is communicating with...
The type A port on the front is supposedly for a USB stick for data storage. I'd guess that the Thermo Scientific software formats the stick in some screwy manner. You'll need the Thermo Scientific  specification to duplicate that. You might be able to get someone with the software to format some USB sticks for you. No idea what format the data format would be. I'd also guess that the Thermo Scientific software manual doesn't detail the format of USB data.
The USB Type B port on the back must have some bidirectional communication protocol. Unknown if Thermo Scientific would release details of the communications specification even if you bought the program. If you know someone that has such a computer instrument setup then you could install a sniffer in the USB communications line and figure it out. A lot of work.