print stiffness matrix C++

[CMiculas]

Dear Developers,

Is it possible to introduce in the C++ file some code that would print out desired results to a file?

More exactly, I am interested in printing out the stiffness matrix for each analysis step.
It is true that I can print the values in the prompt window, but I makes the calculation very slow and also it is very hard to analyze the values after the run if the matrix is large.

Thank you in advance!