Hope all are doing great.
well, I want to ask one general question about how to export Spare matrix solver and non linear history to excel.
Many thanks in advance for sparing time and considerations.
Can you clarify what you mean by "export spare matrix solver"? I believe you are actually referring to the Sparse Matrix solution.
You can export nonlinear results to excel through the use of the Data Table where you can request specific or all results data using one of the List > Output commands. See Sections 8.6.3, 8.6.4 and 8.6.5 of the Femap Commands manual.
Can you please reply publicly as I am not an expert on how to do this in NX Nastran?