Decoding file 90100375.WAT:
FileHdr ver=1 ID=9 rate=600 01/09/2017 16:12:20.758 dur=0.517
Second Marker 01/09/2017 16:12:20
Inertial Data  acc:  0.02400  0.11067  0.13513  quat: -0.63483  0.25232  0.69800  0.21466 norm:  0.999975
Inertial Data  acc:  0.03223  0.10672  0.15251  quat: -0.63135  0.25964  0.70142  0.20490 norm:  0.999991
File 90100375.WAT: 2 data records in 0.517 seconds