All printout report headers you created in the printout report using the menu "Settings → Header" are stored in the DlubalProtocolConfig.cfg file. They can be found in the master data folder (by default, C:\ProgramData\Dlubal\Global\General Data). Any changes in this file become effective when you save the model.
Specifications for your printout report template are saved in the file RfemProtocolConfig.cfg or RstabProtocolConfig.cfg. You should also save these files before a new installation.
If you have created combination schemes, they are saved in the KombinSchema.dat file available in the master data folder.
You can also save the entire General Data folder before the next installation in order to keep user-defined files.
The projects connected in Project Manager are managed in the PRO.DLP file. This is located in the folder C:\ProgramData\Dlubal\Global\Project Manager by default. If you want to uninstall RFEM or RSTAB before an update, you should save this file, too.
Finally, there is also the option to export the settings used in the program, such as display properties, fonts, toolbars, and so on, in a file and reimport them, if necessary. You can access this function using the menu "Options → Configuration Manager" (see image).
