Decoding file 90100411.WAT:
FileHdr ver=1 ID=9 rate=600 01/09/2017 17:38:44.441 dur=1.534
Second Marker 01/09/2017 17:38:44
Inertial Data  acc: -0.04858 -0.06378  0.03604  quat: -0.67120  0.06818  0.72534  0.13666 norm:  0.999979
Inertial Data  acc: -0.02414 -0.04788  0.05606  quat: -0.67163  0.06384  0.72449  0.14111 norm:  0.999979
File 90100411.WAT: 2 data records in 1.534 seconds