When trying to open an RFEM/RSTAB file, I get the error message "The central directory was not found in the archive..." What can I do?


The data of an RFEM/RSTAB structure is saved as packed by default. If this packing process is interrupted or disturbed by another software, a faulty archive may occur.
You can upload your RFEM/RSTAB file via our website and we will try to save the data. Please see the link below.

To avoid this problem in the future, please save very large files locally on your PC and then move them to a network path, if necessary.
Please, pay attention to the correct settings in your antivirus software, as it may also cause problems when reading and writing data.


Central directory Run error Error in archive


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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD