Section force output file.

[pgaire]

Hello everyone,
I am a beginner in OpenSees. I am trying to simulate a concrete arch bridge under seismic loading. The bridge has a span of the length 40 meters. A nonlinear time-history analysis is performed. A nonlinearBeamColumn element is used. The model is 3D.
When I request the response quantities ( section force) from a specific section along the element length, using command;
"recorder Element -file ElementSectionForce/ElementForce41.txt -ele 41 section 1 force"
I got result file with four column for each time steps. Now, I don't know what these four values represent as I was expecting just two column for Fx and Mx.
Please help me to find my problem.
Thank you.

[Baodkt]

I think you can try like this
recorder Element -xml ElementSectionForce/ElementForce41.txt -ele 41 section 1 force
instead of
recorder Element -file ElementSectionForce/ElementForce41.txt -ele 41 section 1 force

[pgaire]

Changing "-file" to "-xml" I got the information about the respective column.
Thank you.!