This is the stiffness matrix obtained from Abaqus. I want to understand what these rows and column coefficients represent.

I am doing a simple beam analysis and calculating the natural frequency for a cantilever beam. Considering a one-beam element. Normally, we have a six x6 stiffness matrix for a beam obtained from the analytical method. I am trying to verify that matrix with the stiffness matrix I obtained from Abaqus. However, I am not able to read this data. Please help me out.

Thanks