Answer:
The reason this message is displayed is that you are in the "viewer" mode. When installing RFEM 5 or RSTAB 8, a viewer version is installed automatically in addition to the standard version. It appears as an additional icon on the desktop. In this mode, you can open the results files, but you cannot make any changes.If you want to edit and calculate a file, you should use the icon without the "viewer" option.
