Question:
Is it possible to use a cross-section from SHAPE‑THIN 9 in older versions of RFEM or RSTAB?
Answer:
Yes, it is.
The cross-section created in SHAPE‑THIN 9 (file extension *.du9) should be opened and saved as a SHAPE‑THIN 8 cross-section (file extension *.du8) in SHAPE‑THIN 8.
In order to open the cross-section in SHAPE‑THIN 8, set the file type to "All Files".
Now, you can normally save this cross-section as a SHAPE‑THIN 8 cross-section, and open it in previous program versions.