These datasets provide the peak known angles for forward bending at 40,80 and 120 degrees, and lateral bending through 40 and 80 degrees. 
The spreadsheets are separated into:
Mocap – Angles calculated from data recorded by Qualisys motion capture.
Orig – Angles calculated from accelerometer data recorded by Movella Xsens Dots.
Corrected – Angles calculated from corrected initial angle accelerometer data recorded by Movella Xsens Dots. 
The columns in the spreadsheets move along in increasing offsets every 9 columns, and the offset of the attached Movella Xsens Dot increases by 5 degrees at this point.