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When exporting to Excel, I receive the error message "Microsoft Excel is not installed on this computer" or the export function to Excel is grayed out and can not be selected even though Excel is installed. Why is that?

Answer

In this case, the COM interface of Excel is not registered correctly. Reasons for this may be B. may be:
  • "Registration cleaners" (for example, CCleaner ...) have destroyed the registry
  • The antivirus software blocks the export
  • Missing User Rights
In most cases, it is sufficient to re-register the COM server from Excel. To do this, start DLInstaller.exe by right-clicking → "Run as Administrator." For a standard installation, this is located in the following folder:
  • C: \ Program Files (x86) \ Common Files \ Dlubal \ DLInstaller
Then, go to the "Diagnostics" tab and start the process (see Figure 2). Then, start RFEM / RSTAB to rerun the export / import.

If this workflow does not work either, Excel has to be reinstalled.

Keywords

Excel not installed warning No. 934

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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