Global transform and global inverse transform


can someone explain how to get the 2 variables globalTransformOfNodeThatTheMeshIsAttachedTo^-1 and globalTransformOfJointNode from the glTF asset? the inverseBindMatrixForJoint can be found in the skin section that points to accessor and then a bufferView and a buffer to get the data (the data must be read line by line or column by column? I mean in order to get the data I have to read line by line? example: 0.2 0.5 0.7 0.3 0.8 0.7 0.5 0.4 0.8 0.9 0.4 0.3 0.1 0.5 0.1 0.2 so the first 4 floats are the first line of the matrice?)
it’s not clear in this tutorial : glTF-Tutorials/ at master · KhronosGroup/glTF-Tutorials (

Thank you