naX2ceLL: NASTRAN results on EXCEL in seconds  


  • naX2ceLL is a software under development by IDAERO, to access the results and information from NASTRAN‘s finite elements models, through Excel, without the need of intermediate post-processing programms.
  • This tool was initially thought from the needs arising during the work done by our engineers along their international experience in the field of aerostructures calculation, where the management and the amount of information required for the calculation has exponentially grown over the years.
  • In IDAERO we invest a lot of effort, by adding value to any of our projects, which brings us to treat as a fundamental aspect, supporting the work of our engineers with the development of high quality and specialized software, what allows us to facilitate and expedite our response times.


A function library to extract results from NASTRAN

naX2ceLL is a Powerful Post-Processing Platform integrated with Microsoft Office Excel® , which includes a functions’ library that allows the engineer, in a simple and fast way, to obtain many different types of results from NASTRAN output files (op2 and xdb files)

These are some of its features:

  • Handling of many types of NASTRAN results (+info)
    • STRAIN and STRESSES in CQUAD4 (by layer, by z1/z2 or by reference plane/curvature), CTRIA3 (by layer, by z1/z2 or by reference plane/curvature), CPENTA, CHEXA.
    • Eigenvalues and eigenvectors in buckling analyses
    • Extraction of SUBCASES
  • Completely embeded in Microsoft Office Excel ®
  • Versatility in the handling and presentation of results at user’s choice
  • Simple and easy to use with unbelivable running speed
  • Able to read OP2 and XDB files with independency of their size.
  • Reading in binary (quick) vs Reading plain text (slow) (See comparison Binary vs F06)
  • Description of all arguments in each function and help files accessible through dialog menus in Microsoft Office Excel®
  • Support and on-line documentation, including reference guide, video-tutorials and practical examples (See tutorials)

The best tool to obtain results

  • This software has been developed by IDAERO to facilitate the day-to-day work of stress engineers, avoiding the need to perform tedious programming tasks in Visual Basic (macros) to treat the NASTRAN results, so that the engineers can focus in their calculus comnpetencies.
  • naX2ceLL is a support in daily work, allowing significantly reduce the customer response time.
  • Being integrated in a familiar environment for the engineer, such as Microsoft Office Excel®, coupled with its easy of use and versatility, naX2ceLL is the best tool to get results from NASTRAN output files, and to process the data from Excel or embed them in technical reports.
  • This IDAERO tool is designed by and for engineers. Always focused on the needs and the requirements provided by our engineers based on the work performed during their experienced careers in real engineering projects in various areas (aeronautics, aerospace, automotive, etc).

Designed by and for stress engineers

  • naX2ceLL was created for stress engineers working with NASTRAN finite element models who need to obtain any results from a linear solution without having to spend time developing their own tolos. Just using the IDAERO‘s XLL functions collection the engineers can get the desired results instantly and in the desired form in Microsoft Office Excel®.
El contrato de uno de los tecnólogos desarrolladores es objeto de ayuda EMPLEA 2016 por el Programa Estatal de Promoción del Talento y su Empleabilidad, incluido en el Plan Estatal de Investigación Científica, Técnica y de Innovación 2013-2016, del Ministerio de Economía y Competitividad.
The contract of one of the developers is subject to funding from EMPLEA 2016, from the National Programme for Talent Promotion and Employability, included in National Plan for Scientific Investigation, Technological and Innovation 2013-2016, from the Ministry of Economy and Competitiveness.