*.ivs data contains molecular conductance traces, and should be opened with picoscan >v5.0.
Alternatively, data is stored as plain ASCII so any txt viewer can open them.

NMR data are in bruker format, plenty of software choice are available. Spinworks from the university of Manitoba is a freeware one.

other files are in PDF as scans of original instrumental output (mass spectra and CNH microanalyses)